| 15897 | $300 Scratch and Ding Mystery Box | xUmp.com | $149.00 |
| 14842 | 1 x AA Battery Holder with Leads - 1.5V | xUmp.com | $0.96 |
| 16274 | 1 x AA Battery Holder with Switch and Leads - 1.5V | xUmp.com | $1.36 |
| 14664 | 10 Alligator Clip Leads - Medium | xUmp.com | $4.99 |
| 14225 | 10 Color Pen | Toysmith | $3.99 |
| 16239 | 10 pack Buzzers with Leads - 1.5V | xUmp.com | $15.99 |
| 16449 | 10 pack Buzzers with Leads - 3V | xUmp.com | $15.95 |
| 16450 | 10 pack Buzzers with Leads - 9V | xUmp.com | $15.99 |
| 16639 | 10 pack CR2032 Batteries with Wire Leads (CMOS) | xUmp.com | $23.90 |
| 16260 | 10 pack Mini DC Motors - 1.5-6V | xUmp.com | $14.99 |
| 16786 | 10 pack Solar Cells - 1.5V 400mA 80x60mm | xUmp.com | $39.99 |
| 16756 | 10 pack Solar Cells - 2V 130mA 54x54mm | xUmp.com | $24.99 |
| 16259 | 100 Assorted LEDs Pack - 5mm | xUmp.com | $4.99 |
| 16872 | 100 Prepared Biology Microscope Slides Set | xUmp.com | $65.00 |
| 15378 | 100 Rocks and Minerals of the U.S.A. | xUmp.com | $69.00 |
| 16604 | 1000 Lumen COB Rechargeable Floodlight with Stand | xUmp.com | $25.00 |
| 16127 | 1000 Solar UV Beads | xUmp.com | $21.99 |
| 16105 | 1000g x 0.1g Mini Bench Digital Scale | US Balance | $15.99 |
| 14455 | 1000g x 0.1g Precision Digital Scale | US Balance | $19.00 |
| 16929 | 1000mL Plastic Measuring Jug | | $3.99 |
| 10241 | 1000um Fiber Optic Cable | Elenco | $2.99 |
| 16757 | 1000X HD WiFi Wireless Digital Microscope | xUmp.com | $59.00 |
| 14771 | 100g Calibration Weight | xUmp.com | $2.99 |
| 16676 | 100g x 0.01g Digital Pocket Scale | US Balance | $12.95 |
| 16345 | 10A 12V Lithium Battery Solar Charge Controller | xUmp.com | $24.00 |
| 16032 | 10-pack Desoldering Wick - 10 x 5ft | Velleman | $14.99 |
| 16605 | 10W COB LED Lantern with Compass | xUmp.com | $15.00 |
| 15961 | 10W Megaphone | Velleman | $19.50 |
| 16112 | 10X Achromatic DIN Microscope Objective | xUmp.com | $35.00 |
| 16355 | 11.1V 3A Lithium Solar Charge Controller | xUmp.com | $11.00 |
| 16057 | 110 Magnet Numbers Set | xUmp.com | $15.00 |
| 16160 | 12 Minerals Educational Set | xUmp.com | $19.99 |
| 16056 | 120 Magnet Letters Set | xUmp.com | $18.00 |
| 14828 | 12mm Steel Balls - Set of 12 | xUmp.com | $7.99 |
| 16329 | 12V 10W Waterproof Solar Panel | xUmp.com | $44.99 |
| 16356 | 12V 4400mAh Lithium Battery | xUmp.com | $45.00 |
| 16357 | 12V 9800mAh Lithium Battery | xUmp.com | $64.99 |
| 15231 | 14-in-1 Educational Solar Robot | OWI | $29.00 |
| 16399 | 15 Minerals Study Kit | xUmp.com | $21.99 |
| 16318 | 15W Stereo Audio Amplifier | xUmp.com | $7.99 |
| 16762 | 18650 Battery Charge Shield - 3V 5V DC Supply | xUmp.com | $5.99 |
| 16465 | 18650 Lithium Cell 3.7V Battery Holder with Leads | xUmp.com | $1.09 |
| 16316 | 18V 150mA Solar Panel with Alligator Clips | xUmp.com | $14.99 |
| 16695 | 18V 30W Waterproof Solar Panel with Connection Leads | xUmp.com | $89.99 |
| 16747 | 19mm Solid Balls - set of 14 | xUmp.com | $29.99 |
| 16888 | 1F 5.5V Super Capacitor | xUmp.com | $2.79 |
| 10399 | 1in Alnico Horseshoe Magnet | Dowling Magnets | $5.99 |
| 16431 | 1N4001 Diode - 1A 50V | xUmp.com | $0.29 |
| 16721 | 1W COB Light Strip - 30 x 5 mm 3V | xUmp.com | $1.39 |
| 15467 | 2 AAA Panasonic Alkaline Plus Batteries | Panasonic | $0.99 |
| 13315 | 2 Alnico Bar Magnets - 3 inch Long | Dowling Magnets | $14.99 |
| 15470 | 2 D Panasonic Alkaline Plus Battery | Panasonic | $2.99 |
| 10143 | 2 inch Alnico Horseshoe Magnet | Dowling Magnets | $7.99 |
| 15877 | 2 x AA Battery Holder B2B with Leads - 3V | xUmp.com | $1.29 |
| 14015 | 2 x AA Battery Holder with Leads- 3V | xUmp.com | $1.08 |
| 14016 | 2 x AA Battery Holder with Switch and Leads - 3V | xUmp.com | $1.44 |
| 16856 | 2 x AAA Battery Holder with Switch and Leads - 3V | xUmp.com | $1.39 |
| 16467 | 2 x CR2032 Clear Battery Holder Flat with Switch | xUmp.com | $1.29 |
| 14014 | 2 x D Battery Holder with Leads - 3V | xUmp.com | $1.88 |
| 16426 | 2.1mm DC Power Jack - Female Chassis Mount | xUmp.com | $1.49 |
| 10146 | 20 Magnet Marbles - Solid Color | Dowling Magnets | $6.99 |
| 15899 | 200g Calibration Weight | xUmp.com | $3.99 |
| 11289 | 200g x 0.01g High Accuracy Digital Scale | US Balance | $26.99 |
| 16346 | 20A 12V Lithium Battery Solar Charge Controller | xUmp.com | $29.00 |
| 16770 | 20g x 0.001g Ultra-High Precision Digital Scale | US Balance | $39.99 |
| 10408 | 24 Piece Magnet Set | Toysmith | $9.99 |
| 16691 | 24AWG Stranded Copper Wire - Four Colors - 10m each | xUmp.com | $9.99 |
| 16395 | 24LED Adjustable Frequency Strobe | Velleman | $10.99 |
| 15638 | 25ml Plastic Gem Jars - 12pk | xUmp.com | $5.99 |
| 16748 | 25mm Solid Balls - set of 14 | xUmp.com | $29.99 |
| 16040 | 2-Pack Edible Wilderness and Survival Cards | xUmp.com | $12.99 |
| 16424 | 2xAA to D Battery Converter | xUmp.com | $1.49 |
| 16466 | 2XCR2032 Battery Holder Round Black with Switch | xUmp.com | $1.49 |
| 16101 | 3 Blade Propeller - 80mm | xUmp.com | $0.59 |
| 16108 | 3 Laser Pointers Set - Red Green Blue | xUmp.com | $29.99 |
| 15611 | 3 LED COB Lumifier - 3.4 inch 3X | xUmp.com | $7.99 |
| 16272 | 3 x AA Battery Holder with Leads - 4.5V | xUmp.com | $1.12 |
| 16275 | 3 x AA Battery Holder with Switch and Leads - 4.5V | xUmp.com | $1.48 |
| 16358 | 3.7V 5000mAh 18650 Lithium Battery Cell | xUmp.com | $6.99 |
| 16657 | 3.7V Lithium Battery Indicator/Tester | xUmp.com | $2.59 |
| 15940 | 3/4 inch Disc Levitation Magnet | xUmp.com | $0.25 |
| 14628 | 35x25mm Right-Angle Optical Glass Prism | xUmp.com | $4.59 |
| 15359 | 36 Piece Chemistry Glassware Kit | xUmp.com | $85.99 |
| 16750 | 37x32mm Right-Angle Optical Glass Prism | xUmp.com | $2.99 |
| 16631 | 3-D Alien Illusion Saucer | Schylling | $10.00 |
| 10147 | 3D Magnetic Field Tube | Dowling Magnets | $19.99 |
| 11692 | 3D Mirascope | Toysmith | $7.50 |
| 10410 | 3D Solar System Mobile 4M Kit | 4M | $19.50 |
| 10398 | 3in Alnico Cow Magnet | Dowling Magnets | $7.99 |
| 15313 | 3-in-1 Diffraction Grating | xUmp.com | $34.99 |
| 16717 | 3-in-1 Water Quality Tester | pH EC TEMP | xUmp.com | $39.99 |
| 15853 | 3V CR1220 Lithium Coin Cell Battery with Leads | xUmp.com | $1.19 |
| 14655 | 3V DC Motor 350mA 13800RPM | Velleman | $1.69 |
| 16120 | 3V-12V DC Variable Power Supply | xUmp.com | $59.99 |
| 16720 | 3W COB Light Chip - 20 mm diameter 9-12V | xUmp.com | $1.59 |
| 15466 | 4 AA Panasonic Alkaline Plus Batteries | Panasonic | $1.79 |
| 15468 | 4 AAA Panasonic Alkaline Plus Batteries | Panasonic | $1.79 |
| 16570 | 4 Blade Propeller - 40mm | xUmp.com | $0.49 |
| 16759 | 4 Blade Propeller - 56mm | xUmp.com | $0.49 |
| 16641 | 4 inch Steel Bar Magnet Red/Blue Pair | xUmp.com | $3.49 |
| 16273 | 4 x AA Battery Holder with Leads - 6V | xUmp.com | $1.36 |
| 14017 | 4 x AA Battery Holder with Switch and Leads - 6V | xUmp.com | $1.56 |
| 16113 | 40X Achromatic DIN Microscope Objective | xUmp.com | $35.00 |
| 16258 | 40X-150X Pocket LED Microscope | xUmp.com | $19.99 |
| 14435 | 4D Animal Cell Model | 4D Vision | $29.99 |
| 16607 | 4D Didactic Exploded Human Skull Anatomy Model | 4D Vision | $29.95 |
| 16816 | 4D Dog Anatomy Model | | $32.95 |
| 15461 | 4D Exploded Skull Anatomy Model | 4D Vision | $29.99 |
| 13877 | 4D Female Reproductive Anatomy Model | 4D Vision | $25.99 |
| 13879 | 4D Frog Anatomy Model | 4D Vision | $29.99 |
| 13881 | 4D Great White Shark Anatomy Model | 4D Vision | $29.00 |
| 13873 | 4D Human Head Anatomy Model | 4D Vision | $29.99 |
| 13874 | 4D Human Heart Anatomy Model | 4D Vision | $19.99 |
| 13813 | 4D Human Muscle and Skeleton Model | 4D Vision | $22.99 |
| 13872 | 4D Human Torso Anatomy Model | 4D Vision | $19.99 |
| 13878 | 4D Male Reproductive Anatomy Model | 4D Vision | $25.99 |
| 16817 | 4D Orange Cat Anatomy Model | | $32.95 |
| 14436 | 4D Plant Cell Model | 4D Vision | $29.99 |
| 13880 | 4D Woolly Mammoth Anatomy Model | 4D Vision | $25.00 |
| 14043 | 4-in-1 Burning Torch Flame Light | Fortune Products | $27.99 |
| 13825 | 4-in-1 Pen Screwdriver | xUmp.com | $2.19 |
| 15691 | 4-in-1 Solar Soil Sensor | xUmp.com | $15.00 |
| 16253 | 4M Crystal Growing Kit | 4M | $10.99 |
| 10705 | 4M Diving Submarine | 4M | $5.99 |
| 12258 | 4M Fridge Rover | 4M | $5.00 |
| 14220 | 4M Kitchen Science Kit | 4M | $12.00 |
| 16578 | 5 VDC Stepper Motor with ULN2003 Driver Board | Velleman | $5.99 |
| 15379 | 50 Rocks and Minerals of the USA | xUmp.com | $39.99 |
| 16248 | 500 Plastic Pipettes - Graduated 3ml | xUmp.com | $20.00 |
| 10491 | 500g x 0.1g Digital Pocket Scale (US-Magnum) | US Balance | $18.99 |
| 16107 | 500X USB Digital Microscope with Stand | xUmp.com | $39.00 |
| 14770 | 50g Calibration Weight | xUmp.com | $2.09 |
| 16575 | 51 LED UV Scorpion Blacklight Flashlight - 395nm | xUmp.com | $22.99 |
| 16883 | 5V USB-Powered Micro Tesla Coil | | $19.95 |
| 14672 | 5W Solar Panel - 20V 300mA | xUmp.com | $39.99 |
| 15558 | 6 inch Plasma Ball | Tedco | $32.99 |
| 16822 | 600 Lumen COB Floodlight | | $9.95 |
| 16573 | 60X Clip-on LED Microscope | xUmp.com | $7.50 |
| 15794 | 6-Color Ball of Whacks | Creative Whack | $29.00 |
| 14707 | 6ft Audio Cable - Stereo to Stereo Plug | xUmp.com | $1.59 |
| 16066 | 6inch NS Alnico Bar Magnet | Dowling Magnets | $8.99 |
| 14656 | 6V DC Motor 340mA 14400RPM | Velleman | $2.59 |
| 16354 | 6V/12V 10A Solar Charge Controller | xUmp.com | $11.00 |
| 10396 | 75 Counting Chips with Block Magnet | Dowling Magnets | $6.99 |
| 14661 | 7W Mono Amplifier Solder Kit | Velleman | $13.99 |
| 15862 | 8 inch Mirror Ball | Fortune Products | $11.99 |
| 16636 | 8ft Jumbo Green Inflatable Alien | xUmp.com | $24.99 |
| 16464 | 9V Battery Holder with Switch and Leads | xUmp.com | $1.99 |
| 15872 | 9V Battery Snap Connector with Leads | xUmp.com | $0.29 |
| 16801 | 9V Battery Snap to Alligator Clips Connection Wire | xUmp.com | $1.25 |
| 15469 | 9V Panasonic Alkaline Plus Battery | Panasonic | $2.59 |
| 15144 | AC/DC Generator Demo Kit | xUmp.com | $75.99 |
| 15347 | Acrylic Color Filters - pack of 5 | xUmp.com | $5.59 |
| 13491 | Acrylic Equilateral Prism - 25 x 75 mm | xUmp.com | $3.79 |
| 15349 | Acrylic Lens & Prisms Set | xUmp.com | $22.99 |
| 16290 | Acrylic Wave Pendulum | xUmp.com | $119.99 |
| 16846 | Action & Reaction - Full Set - Marble Run Kit | Clementoni | $75.00 |
| 16845 | Action & Reaction - Starter Set - Marble Run Kit | Clementoni | $39.00 |
| 12342 | Addition Tables Placemat | xUmp.com | $2.50 |
| 10149 | Adhesive Magnet Strip - 10ft Roll | Dowling Magnets | $4.49 |
| 13619 | Adhesive Magnetic Dots | Dowling Magnets | $4.99 |
| 15592 | Adjustable Beaker Stand for Micro Burner | xUmp.com | $12.99 |
| 16726 | Adjustable Bunsen Burner | xUmp.com | $11.99 |
| 15356 | Adjustable Double Burette Clamp | xUmp.com | $11.00 |
| 16765 | Adjustable Green Laser Module - Line 510nm 5mW | xUmp.com | $39.99 |
| 15879 | Adjustable Red Laser Module - Dot 650nm 5mW | xUmp.com | $5.99 |
| 16451 | Adjustable Red Laser Module - Line 650nm 5mW | xUmp.com | $5.99 |
| 12931 | Adjustable Stage for 540X Lens | xUmp.com | $39.99 |
| 16766 | Adjustable Violet/Blue Laser Module - Line 405nm 5mW | xUmp.com | $29.99 |
| 15587 | Advanced All-Purpose Glass Celsius Thermometer | xUmp.com | $4.95 |
| 15170 | Advanced Fossil Collection | xUmp.com | $43.00 |
| 15162 | Advanced Spectrometer | | $1,599.95 |
| 15993 | AG-13 Alkaline Batteries - 20 pack | xUmp.com | $2.99 |
| 15241 | Agar Powder - 10g - Petri Dish Biology Experiments | xUmp.com | $14.99 |
| 15240 | Agar Powder - 3g - Petri Dish Biology Experiments | xUmp.com | $7.99 |
| 13174 | Agate Bookends - Blue | Geocentral | $39.00 |
| 14602 | Agate Bookends - Green | Geocentral | $39.99 |
| 13173 | Agate Bookends - Natural | Geocentral | $39.99 |
| 11817 | Agate Geode Half | xUmp.com | $4.99 |
| 11205 | Agate Slab - Small Blue | Geocentral | $2.00 |
| 15924 | Air Power Racer Kit | OWI | $24.99 |
| 14243 | Air Spectrum Discharge Tube | xUmp.com | $19.99 |
| 16774 | Air-Walker Science Kit | Thames & Kosmos | $39.00 |
| 14476 | Alcohol Thermometer -20 to 110 deg C | xUmp.com | $2.99 |
| 14154 | Alcohol Wick Lamp | xUmp.com | $3.99 |
| 16278 | Alien Attack Sling Shot | xUmp.com | $2.29 |
| 14876 | Alligator Clips - Black - 24pc | xUmp.com | $2.99 |
| 14875 | Alligator Clips - Red - 24pc | xUmp.com | $2.99 |
| 16394 | Alligator Cords - 10 pack - 2ft Red/Black Set | xUmp.com | $5.99 |
| 14484 | Alligator Cords - 2ft - pack of 6 | xUmp.com | $3.99 |
| 11114 | Alligator Cords - 2ft Red/Black Set | xUmp.com | $1.39 |
| 10386 | Alnico Bar Magnet | Dowling Magnets | $6.99 |
| 13314 | Alnico Bar Magnet - 6 inch Long | Dowling Magnets | $13.00 |
| 15113 | Alnico North-South Magnet Bars - Pair | Dowling Magnets | $7.99 |
| 15114 | Alnico Red-Green Bar Magnet | Dowling Magnets | $4.99 |
| 12748 | Alnico Science Kit | Dowling Magnets | $21.99 |
| 15627 | Aluminum Compass - 1.75 inch | xUmp.com | $1.79 |
| 15775 | Aluminum Tuning Forks - Set of 8 | xUmp.com | $39.99 |
| 11197 | Amazonite - Bulk Mineral | Geocentral | $1.49 |
| 15758 | Amazonite - Large Chunk (2-3 inch) | xUmp.com | $4.99 |
| 16724 | Amber Bottle 8oz - Boston Round w/Cap | xUmp.com | $2.79 |
| 10973 | Amethyst - Bulk Mineral | Geocentral | $1.49 |
| 11822 | Amethyst - Large Chunk (2-3 inch) | xUmp.com | $3.99 |
| 15091 | Amethyst Candle Holder | xUmp.com | $29.99 |
| 15762 | Amethyst Point - Large Chunk (2-3 inch) | xUmp.com | $6.99 |
| 16182 | Ammonite Fossil Bookends | xUmp.com | $59.99 |
| 16645 | Ammonite Fossil Pair - 1.5 - 2 inch | xUmp.com | $9.99 |
| 11028 | Analog DC AmpMeter 0-1A | xUmp.com | $9.99 |
| 14080 | Analyze This - Biology Slide Set Book | C & A Scientific | $1.00 |
| 14774 | Anatomy 2 Study Chart | BarCharts | $4.99 |
| 13457 | Anemometer | xUmp.com | $11.99 |
| 16787 | Ant Habitat Replacement Gel | xUmp.com | $6.97 |
| 16831 | Anti-fog Project Safety Glasses | xUmp.com | $1.95 |
| 16576 | Anti-Static Adjustable Elastic Wrist Strap | Velleman | $4.99 |
| 16423 | Apophyllite - Large Chunk (2-3 inch) | xUmp.com | $8.99 |
| 16422 | Aragonite Cluster - Large Chunk (2-3 inch) | xUmp.com | $8.99 |
| 16773 | Architectural Engineering Kit | Thames & Kosmos | $49.95 |
| 14246 | Argon Spectrum Discharge Tube | xUmp.com | $19.99 |
| 16629 | Ask the Alien - Magic 8 Ball | Schylling | $8.00 |
| 14925 | Assembled 7W Mono Amplifier | Velleman | $20.00 |
| 15686 | Assorted Flint Glass Tubing | xUmp.com | $34.99 |
| 14922 | Assorted Transistors Set - 100 pcs | Velleman | $14.99 |
| 15846 | Astrolabe - Astronomy Instrument | xUmp.com | $15.00 |
| 16109 | Atmospheric Mat with Hook | xUmp.com | $24.99 |
| 14125 | Atom Ball | Toysmith | $2.99 |
| 15890 | Atom Ball - 4 pack | xUmp.com | $12.00 |
| 14431 | ATR - All Terrain Robot Kit | OWI | $49.00 |
| 16187 | Aura Amethyst | xUmp.com | $3.99 |
| 15625 | Auto Fuse Set - 120pcs | xUmp.com | $5.99 |
| 16373 | Azurite - Large Chunk (2-3 inch) | xUmp.com | $5.99 |
| 14732 | Backlit Digital Multimeter | xUmp.com | $14.99 |
| 16870 | Bacteria Farm Experiment Kit | | $19.50 |
| 13538 | Balancing Bird | xUmp.com | $4.99 |
| 14224 | Balancing Eagle | Toysmith | $4.00 |
| 10871 | Ball and Ring - Thermal Expansion Set | xUmp.com | $10.99 |
| 12181 | Ball of Whacks | Creative Whack | $34.00 |
| 15676 | Ballistic (Shock) Pendulum Apparatus | xUmp.com | $49.99 |
| 15675 | Ballistics Car Physics Demo | xUmp.com | $35.99 |
| 16741 | Balloon and Puck Set | | $27.99 |
| 10431 | Balloon Car Racer | Toysmith | $3.99 |
| 10523 | Balloon Helicopter | Toysmith | $2.59 |
| 13971 | Basic Molecular Model Set | xUmp.com | $24.99 |
| 15161 | Basic Spectrometer | | $249.95 |
| 15538 | Bat Skeleton Specimen | Real Insect | $49.99 |
| 15533 | Bat Specimen | Real Insect | $24.99 |
| 16753 | Battery DIY Micro Car Kit - STEM Maker Kit | xUmp.com | $4.00 |
| 14820 | Beaker Tongs | xUmp.com | $5.99 |
| 15089 | Bear Smart Playing Cards | xUmp.com | $5.99 |
| 16225 | Bee Life Cycle Stages | Insect Lore | $7.99 |
| 14813 | Bell Jar with Bell and Pressure Plate | xUmp.com | $95.00 |
| 14772 | Benchtop Pro Digital Scale - 2000g x 0.1g | US Balance | $25.99 |
| 15593 | Bernoulli Bag - Pack of 4 | xUmp.com | $7.99 |
| 16306 | Bi-Focal Magnifier | xUmp.com | $1.99 |
| 15798 | Big Ball of Whacks - 6 Colors | Creative Whack | $34.00 |
| 15799 | Big Ball of Whacks - Red | Creative Whack | $29.00 |
| 16610 | Big Builder Sand Box | xUmp.com | $29.99 |
| 11952 | Bi-Metal Compound Bar | xUmp.com | $6.49 |
| 15689 | BIO2 Inflatable Plant Cell | xUmp.com | $15.00 |
| 16569 | Bismuth Crystal - Large | xUmp.com | $14.99 |
| 16163 | Bismuth Crystal - Small | xUmp.com | $5.99 |
| 15795 | Black Ball of Whacks | Creative Whack | $29.00 |
| 15975 | Black Scorpion - Small Specimen | Real Insect | $3.99 |
| 14448 | Black Scorpion Specimen - Large | Real Insect | $14.99 |
| 15697 | Black Streak Plates - set of 10 | xUmp.com | $10.99 |
| 15748 | Black Tourmaline - Large Chunk (2-3 inch) | xUmp.com | $10.99 |
| 15765 | Black Tourmaline In Quartz - Large Chunk (2-3 inch) | xUmp.com | $10.99 |
| 13806 | Blackish Stag Beetle | Real Insect | $14.99 |
| 15424 | Black-White Neo Button Magnet | Dowling Magnets | $2.99 |
| 16492 | Blobz - Gooey Stress Ball | Play Visions | $3.99 |
| 11740 | Blood and Guts Prepared Slide Set | C & A Scientific | $13.99 |
| 15335 | Blood Pressure Set | xUmp.com | $22.99 |
| 15796 | Blue Ball of Whacks | Creative Whack | $34.95 |
| 16924 | Blue Cobalt Bottle with Dropper - 2oz | | $1.99 |
| 15985 | Blue Kyanite - Large Chunk (2-3 inch) | xUmp.com | $8.99 |
| 15311 | Blue Litmus Paper - 100 strips | xUmp.com | $1.29 |
| 13449 | Blue Magic Wand Kaleidoscope | xUmp.com | $12.99 |
| 16874 | Blue Neon Bulb - 6mm x 16mm - for Electro-Static Experiments | xUmp.com | $1.95 |
| 15531 | Blue Pi Math T-Shirt | xUmp.com | $18.00 |
| 15760 | Botryoidal Hematite - Large Chunk (2-3 inch) | xUmp.com | $6.99 |
| 16758 | Breadboard Power Supply 3.3V 5V USB Arduino | xUmp.com | $2.99 |
| 14200 | Break Open Your Own Single Geode | xUmp.com | $1.99 |
| 10967 | Break-Your-Own Geodes Kit | Geocentral | $11.99 |
| 13397 | Brush Robot 4M STEM Kit | 4M | $14.00 |
| 14735 | Bubble Science 4M Kit | 4M | $10.00 |
| 12239 | Bug Vacuum Set | Toysmith | $13.99 |
| 16612 | Build Your Own Rubiks Cube Kit | Rubiks | $19.00 |
| 16116 | Bumper Cars - Pair | xUmp.com | $5.99 |
| 14868 | Bunsen Burner for Chemistry Labs | xUmp.com | $8.99 |
| 14133 | Burette Clamp - Single Coated Jaws | xUmp.com | $6.99 |
| 13409 | Buzzer with Leads - 1.5V | xUmp.com | $1.79 |
| 14845 | Buzzer with Leads - 3V | xUmp.com | $1.79 |
| 15858 | Buzzer with Leads - 9V | xUmp.com | $1.79 |
| 14253 | Caffeine Glass Beaker Mug | xUmp.com | $14.99 |
| 16472 | Camping Solar LED Light Bulb - 0.8W 5V 150 Lumens | xUmp.com | $12.99 |
| 15061 | Candy Chemistry Kit | Thames & Kosmos | $29.00 |
| 16461 | Captain ROAM-E-O | OWI | $17.50 |
| 16444 | Carabiner Tape Measure | xUmp.com | $1.79 |
| 14252 | Carbon Dioxide Spectrum Discharge Tube | xUmp.com | $19.99 |
| 16161 | Carborundum Mineral Specimen | xUmp.com | $3.29 |
| 12929 | Carrying Case for GE-5 | xUmp.com | $79.99 |
| 14479 | Cavity Tile - Spotting Tile - Polypropylene | xUmp.com | $0.79 |
| 16195 | Ceiling Hook Magnets | Dowling Magnets | $9.99 |
| 15165 | Celestial Star Globe | xUmp.com | $209.00 |
| 15393 | Celestron 5MP LCD Digital Microscope II | Celestron | $249.00 |
| 15967 | Celestron CB2000CF Binocular Lab Microscope | Celestron | $299.00 |
| 15965 | Celestron CM1000C Lab Microscope | Celestron | $125.00 |
| 15966 | Celestron CM2000CF Lab Microscope | Celestron | $219.00 |
| 15964 | Celestron CM800 Lab Microscope | Celestron | $99.99 |
| 15395 | Celestron FirstScope | Celestron | $68.00 |
| 15394 | Celestron Infiniview 5MP LCD Digital Microscope | Celestron | $199.99 |
| 15436 | Celestron PentaView LCD Digital Microscope | Celestron | $449.00 |
| 15438 | Celestron Prepared Slides - 100 piece box | Celestron | $59.00 |
| 12660 | Centipede Specimen | Real Insect | $14.99 |
| 10151 | Ceramic Bar Magnet | Dowling Magnets | $0.69 |
| 10401 | Ceramic Block Magnet | Dowling Magnets | $1.39 |
| 14782 | Ceramic Capacitors Set - 224pcs | Velleman | $19.99 |
| 10152 | Ceramic Disc Magnet | Dowling Magnets | $0.49 |
| 10150 | Ceramic Horseshoe Magnet | Dowling Magnets | $0.99 |
| 10400 | Ceramic Latch Magnet | Dowling Magnets | $0.39 |
| 10229 | Ceramic Ring Magnet | Dowling Magnets | $0.49 |
| 13346 | Chalcopyrite - Rough Bulk Mineral | Geocentral | $1.79 |
| 16603 | Chalkboard Flash Cards - Numbers | xUmp.com | $14.99 |
| 10494 | CHEM C1000 Chemistry Kit v2.0 | Thames & Kosmos | $55.00 |
| 10495 | CHEM C2000 Chemistry SuperKit v2.0 | Thames & Kosmos | $149.99 |
| 12148 | CHEM C500 Chemistry Set v2.0 | Thames & Kosmos | $29.00 |
| 15987 | Chocolate Science Lab Kit | Thames & Kosmos | $18.00 |
| 11203 | Chrysocolla - Bulk Mineral | Geocentral | $1.69 |
| 15757 | Chrysocolla - Large Chunk (2-3 inch) | xUmp.com | $5.99 |
| 16157 | Circle Sand Art - Blue | xUmp.com | $19.00 |
| 15759 | Citrine Druzy - Large Chunk (2-3 inch) | xUmp.com | $8.99 |
| 11206 | Citrine Points - Bulk Mineral | Geocentral | $1.49 |
| 16752 | Clamp Extension - Four Prong - Chemistry Lab | xUmp.com | $3.99 |
| 14137 | Clamp Holder - Aluminum | xUmp.com | $4.39 |
| 14136 | Clamp Holder - Cast Iron | xUmp.com | $3.49 |
| 10392 | Classroom Magnet Kit - Level 1 | Dowling Magnets | $79.99 |
| 10393 | Classroom Magnet Kit - Level 2 | Dowling Magnets | $79.99 |
| 10394 | Classroom Magnet Kit - Level 3 | Dowling Magnets | $119.99 |
| 13401 | Clean Water Science 4M Kit | 4M | $14.99 |
| 13840 | Cloth Tape Measure | xUmp.com | $0.89 |
| 13993 | Cloud Forming Apparatus | xUmp.com | $19.99 |
| 16418 | COB LED Light Switch | xUmp.com | $5.99 |
| 16436 | COB LED Mini Light Switch | xUmp.com | $5.99 |
| 15995 | Cob LED Stick Light - 100 Lumens | xUmp.com | $4.99 |
| 16823 | COB Rocker Light - 200 Lumen | | $2.50 |
| 16330 | Code Gamer Kit | Thames & Kosmos | $129.00 |
| 15711 | Coffee Cup Stirling Engine | xUmp.com | $49.00 |
| 15873 | Coin Vibration Motor - 3V | xUmp.com | $0.99 |
| 16852 | Coko Programmable Crocodile Robot | Clementoni | $65.00 |
| 13992 | Color Filters - Gelatin - Pack of 5 | xUmp.com | $4.99 |
| 15590 | Color Paddles - Set of 18 | xUmp.com | $8.99 |
| 15109 | Color Ring Magnet | Dowling Magnets | $0.89 |
| 16200 | Colorflame Candles | Play Visions | $4.99 |
| 16536 | Comparative Brains - Real Specimens | Real Insect | $94.99 |
| 16535 | Comparative Hearts - Real Specimens | Real Insect | $94.99 |
| 15604 | Compass - 1.5 inch diameter | xUmp.com | $0.79 |
| 15910 | Complete Geometric Optics Demo Set | xUmp.com | $109.99 |
| 15682 | Concave Glass Mirror - 3 inch | xUmp.com | $2.99 |
| 16744 | Conducting Dough 16oz | | $8.99 |
| 16743 | Conducting Dough Classroom Kit | | $129.99 |
| 16742 | Conducting Dough Individual Kit | | $49.99 |
| 15159 | Conductivity of Solutions Apparatus | xUmp.com | $11.00 |
| 15771 | Constant Motion Machine | xUmp.com | $19.99 |
| 13536 | Constant Velocity Car | xUmp.com | $8.50 |
| 11111 | Contact Key Switch | xUmp.com | $4.29 |
| 15683 | Convex Glass Mirror | xUmp.com | $2.99 |
| 13851 | Convex Mirror D50mm F75mm | xUmp.com | $1.49 |
| 10548 | Cool Blue Light Experiment Kit | Copernicus Toys | $18.00 |
| 16164 | Copper - Natural Sculpted Specimen | xUmp.com | $2.00 |
| 16878 | Copper Metal Cube - 10mm 99.95% Pure | xUmp.com | $17.95 |
| 13885 | Copper-Zinc Voltaic Cell | xUmp.com | $12.50 |
| 14231 | Coriolis Effect Science Kit | xUmp.com | $44.99 |
| 13989 | Cork Borers - Set of 12 | xUmp.com | $49.95 |
| 15954 | Cosmic Coil | Toysmith | $11.99 |
| 10532 | Cosmic Rocket 4M Kit | 4M | $12.99 |
| 13150 | Cotton Tipped Applicator Sticks | xUmp.com | $9.99 |
| 16763 | CR2032 Battery Holder with On/Off Switch - LillyPad | xUmp.com | $1.29 |
| 16483 | CR2032 Battery with Wire Leads and Connector (CMOS, Laptop, Notebook, Motherboard, Bristlebots, etc.) | xUmp.com | $2.49 |
| 16798 | CR2032 Battery with Wire Leads and Molex 51021-0200-B (1.25mm pitch) Connector (CMOS) | xUmp.com | $2.49 |
| 15992 | CR2032 Lithium Cell Batteries - 9 pack | xUmp.com | $2.99 |
| 14921 | Crawling Microbug Solder Kit | Velleman | $15.00 |
| 16601 | Crayola Dry Erase Crayons | xUmp.com | $5.99 |
| 16559 | Creative Cosmetics Lab | Thames & Kosmos | $49.00 |
| 13154 | Creepy Crawlies Prepared Slide Set | C & A Scientific | $9.99 |
| 13494 | Cristalheat - Supercooled Heat Pack | xUmp.com | $5.99 |
| 16860 | Crookes Radiometer - 7 inch tall | | $25.00 |
| 10094 | Crookes Solar Radiometer | Tedco | $14.99 |
| 14483 | Crucible Tongs - Plated Steel | xUmp.com | $2.29 |
| 16479 | Crystal Geode Growing 4M Kit | 4M | $12.00 |
| 10426 | Crystal Growing Mystical Tree | Toysmith | $2.99 |
| 16698 | Crystal Growing: Glow-in-the-Dark | Thames & Kosmos | $44.99 |
| 16840 | Cyber Robot - Programmable Bluetooth Robotics Kit | Clementoni | $59.00 |
| 16841 | Cyber Talk Robot Kit | Clementoni | $75.00 |
| 16468 | D Battery Holder with Leads - 1.5V | xUmp.com | $1.09 |
| 14671 | Dancing Oobleck Apparatus | xUmp.com | $79.99 |
| 15874 | DC Motor 130 - 1.5-6V with leads | xUmp.com | $1.79 |
| 16452 | DC Motor 260 - 1.5-6V with leads | xUmp.com | $1.79 |
| 15153 | DC Motor Kit | xUmp.com | $11.99 |
| 11027 | DC Voltmeter 0-10V | xUmp.com | $9.99 |
| 16633 | Decide-O-Matic | Schylling | $8.00 |
| 14816 | Deluxe Color Mixing Demo | xUmp.com | $99.99 |
| 15817 | Deluxe Cork Borer - set of 6 | xUmp.com | $15.00 |
| 15239 | Deluxe DC Crank Generator | xUmp.com | $14.99 |
| 15147 | Deluxe Dissecting Set - 12 Pieces | xUmp.com | $24.99 |
| 16541 | Deluxe Frog Development Specimen | Real Insect | $49.99 |
| 15308 | Deluxe Gold Leaf Electroscope | xUmp.com | $29.99 |
| 16617 | Deluxe Gyro Wheel with Lights | Tedco | $12.99 |
| 16540 | Deluxe Life Cycle of Silkworm | Real Insect | $49.00 |
| 13972 | Deluxe Molecular Model Set | xUmp.com | $59.00 |
| 16751 | Deluxe Solar-Powered Car - with Teacher Guide | xUmp.com | $29.99 |
| 16115 | Deluxe Stirling Generator | xUmp.com | $119.00 |
| 15747 | Dendritic Crystal | xUmp.com | $3.99 |
| 15779 | Density Cube Set - 10 Cubes Set | xUmp.com | $29.99 |
| 15752 | Desert Rose Cluster - Large Chunk (2-3 inch) | xUmp.com | $6.99 |
| 15203 | Desktop Skeleton | xUmp.com | $26.00 |
| 14803 | Desoldering Pump | xUmp.com | $4.99 |
| 13381 | Desoldering Wick | Elenco | $1.49 |
| 11006 | Detective Science Fingerprint 4M Kit | 4M | $10.00 |
| 13348 | Dig Into Fossils Booklet | Geocentral | $1.99 |
| 10980 | Dig Into Rocks Booklet | Geocentral | $2.19 |
| 16325 | Digital Anemometer | xUmp.com | $19.99 |
| 16754 | Digital DC Voltmeter Module - 3V-30V | xUmp.com | $1.99 |
| 16326 | Digital EMF Meter | xUmp.com | $44.99 |
| 16716 | Digital Inclinometer | 360 deg Digital Level | xUmp.com | $34.99 |
| 14475 | Digital Instant Read Thermometer C/F | xUmp.com | $9.99 |
| 16799 | Digital IR Infrared Thermometer Non-Contact | xUmp.com | $19.97 |
| 16714 | Digital Laser Tachometer | 2.5 - 99,999 RPM Meter | xUmp.com | $19.99 |
| 15841 | Digital Multimeter with Data Hold | xUmp.com | $11.99 |
| 16080 | Digital Particle/Temperature Meter - TDS-3 | xUmp.com | $11.99 |
| 16123 | Digital pH Meter | xUmp.com | $12.99 |
| 16715 | Digital Pocket Oscilloscope - 0-200KHz | xUmp.com | $79.99 |
| 16322 | Digital Sound Meter | xUmp.com | $22.99 |
| 16937 | Digital Stopwatch - 100th of second | | $3.39 |
| 16319 | Digital Thermometer Module with Probe | xUmp.com | $2.99 |
| 16434 | Digital Timer - Classroom, Lab, Kitchen | xUmp.com | $2.99 |
| 14937 | Digital Vernier Calipers | xUmp.com | $9.99 |
| 16706 | Dino Skeleton Excavation Dig Mini Kit | Geocentral | $3.99 |
| 14679 | Dinosaur Bone | xUmp.com | $5.99 |
| 15021 | Dinosaur Eraser | xUmp.com | $2.99 |
| 12467 | Dinosaur Fossil Putty | Toysmith | $2.99 |
| 11246 | Dinosaurs Playing Cards | xUmp.com | $5.99 |
| 16611 | Dinosaurs Wild Cards | xUmp.com | $10.99 |
| 15984 | Diopside - Large Chunk (2-3 inch) | xUmp.com | $6.99 |
| 13778 | Discharge Electrode - Hand-Held | Winsco | $99.00 |
| 13777 | Discharge Electrode - Large Mounted | Winsco | $253.00 |
| 11242 | Discover America Playing Cards | xUmp.com | $5.99 |
| 10092 | Discovery Pack | Tedco | $15.00 |
| 16835 | Disposable Foam Safety Ear Plugs - ANSI S3. 19-1974 | xUmp.com | $0.29 |
| 13151 | Disposable Scalpels - pack of 10 | C & A Scientific | $7.99 |
| 16543 | Distilling Apparatus | xUmp.com | $87.99 |
| 12341 | Division Tables Placemat | xUmp.com | $2.50 |
| 16350 | DIY Flashing LED Circuit Kit | xUmp.com | $2.50 |
| 16868 | DIY Galileo Thermometer Kit | | $14.00 |
| 16198 | DNA Ball - Stress Ball | Play Visions | $5.99 |
| 16838 | DOC - Educational Smart Robot | Clementoni | $69.00 |
| 16584 | Dodeca 12-in-1 Robot Kit | OWI | $25.00 |
| 13398 | Doodling Robot 4M Kit | 4M | $14.00 |
| 16768 | Double 18650 Battery Charge Shield - 3V 5V DC Supply | xUmp.com | $9.99 |
| 14134 | Double Burette Clamp | xUmp.com | $9.99 |
| 11104 | Double Pulley | xUmp.com | $2.19 |
| 11106 | Double Tandem Pulley | xUmp.com | $2.29 |
| 14907 | Dr Johnson's Heat Engine | xUmp.com | $49.00 |
| 15532 | Dragonfly Specimen | Real Insect | $15.99 |
| 16419 | Dual COB LED Light Switch | xUmp.com | $9.99 |
| 14440 | Dual Color Z Liquid Timer | xUmp.com | $4.99 |
| 16320 | Dual Scale C/F Sticker Thermometer | xUmp.com | $0.79 |
| 13153 | Dual Thermometer with Plastic Backing | C & A Scientific | $1.59 |
| 16297 | Duncan Reflex Auto Return Yo-Yo | Duncan | $9.00 |
| 15950 | Duncan Skyhawk Offstring Yo-Yo | Duncan | $25.00 |
| 14074 | Dynamic Car Set | xUmp.com | $16.00 |
| 11696 | Dynamo Torch 4M Kit | 4M | $14.99 |
| 10837 | E=mc2 Science T-Shirt | xUmp.com | $18.00 |
| 16855 | EC TDS Temp 3-in-1 Digital Meter | xUmp.com | $39.95 |
| 14392 | Economy Ceramic Horseshoe Magnet | xUmp.com | $0.29 |
| 14814 | Economy Color Mixing Demo | xUmp.com | $37.99 |
| 16433 | Economy DC Crank Generator - USB 5V | xUmp.com | $7.99 |
| 15146 | Economy Dissecting Set - 7 Pieces | xUmp.com | $9.99 |
| 16769 | Economy Wire Stripper and Crimper | xUmp.com | $1.29 |
| 14806 | Edible Chemistry Kit | Copernicus Toys | $18.00 |
| 15085 | Edible Wilderness Playing Cards | xUmp.com | $6.00 |
| 13035 | Eerie Orb | Toysmith | $3.99 |
| 16046 | Einstein Coin Bank by Kikkerland | Kikkerland | $8.00 |
| 15595 | Electric Bell | xUmp.com | $15.00 |
| 14848 | Electric Double Walled Calorimeter | xUmp.com | $12.00 |
| 16340 | Electric Paint Pen | xUmp.com | $19.95 |
| 13780 | Electric Plume for Van de Graaff Generator | Winsco | $29.00 |
| 15830 | Electricity and Electronic Circuits Kit | xUmp.com | $25.00 |
| 16560 | Electricity Master Lab | Thames & Kosmos | $179.00 |
| 16934 | Electrolysis of Water Classroom Demo Apparatus | | $229.00 |
| 14783 | Electrolytic Capacitors Set - 120pcs | Velleman | $14.99 |
| 14033 | Electromagnet - Dissectible | xUmp.com | $15.99 |
| 14852 | Electromagnet Science Kit | xUmp.com | $24.99 |
| 10155 | Electromagnet Set | Dowling Magnets | $36.99 |
| 16661 | Electromagnet Solenoid - 3V 25N | xUmp.com | $6.99 |
| 16660 | Electromagnet Solenoid - 6V 25N | xUmp.com | $7.99 |
| 16935 | Electromagnetism - Oersteds Effect Classroom Demo Apparatus | | $85.95 |
| 15220 | Electronics Advanced Circuits Kit | Thames & Kosmos | $179.00 |
| 14336 | Electronics Learning Circuits Kit | Thames & Kosmos | $47.95 |
| 16430 | Electronics Project Box - Large | xUmp.com | $9.99 |
| 16429 | Electronics Project Box - Medium | xUmp.com | $4.99 |
| 16428 | Electronics Project Box - Small | xUmp.com | $2.99 |
| 10206 | Electronics Solder Tool Kit | Elenco | $17.99 |
| 16531 | Electrophoresis Tank | xUmp.com | $139.00 |
| 13785 | Electrophorus - For Electrostatics Experiments | Winsco | $69.00 |
| 15343 | Electrostatic Science Kit | xUmp.com | $29.00 |
| 16421 | Elestial Quartz - Large Chunk (2-3 inch) | xUmp.com | $10.99 |
| 15750 | Emerald - Large Chunk (2-3 inch) | xUmp.com | $7.99 |
| 14257 | Emerald Quartz - Bulk Mineral | Geocentral | $1.69 |
| 14405 | Emergency Sleeping Bag | xUmp.com | $2.79 |
| 16581 | Emergency Solar Hand-Crank Radio Flashlight | xUmp.com | $29.00 |
| 13555 | Emergency Space Blanket | xUmp.com | $1.49 |
| 16196 | Emoji Big Button Magnets | Dowling Magnets | $5.99 |
| 16903 | Enamelled Copper Wire - 0.3mm 10m - Electro-Magnet Wire | xUmp.com | $4.99 |
| 16553 | Enamelled Copper Wire - 0.5mm 10m | xUmp.com | $7.99 |
| 16552 | Enamelled Copper Wire - 1mm 100g 12m | xUmp.com | $12.99 |
| 10612 | Energy Ball | xUmp.com | $3.99 |
| 16739 | Energy Transfer Balls - Set of 2 | | $36.99 |
| 14050 | Environmental Test Lab Kit | xUmp.com | $59.95 |
| 13983 | Equal Mass Science Set | xUmp.com | $12.99 |
| 16406 | Equilateral Acrylic Prism - 1 x 2 inches | xUmp.com | $2.99 |
| 16405 | Equilateral Glass Prism - 1 x 2 inches | xUmp.com | $3.59 |
| 14477 | Equilateral Glass Refraction Prism 75 x 9 mm | xUmp.com | $3.99 |
| 10869 | Equilateral Optical Glass Prism - 25 x 75 mm | xUmp.com | $4.99 |
| 16363 | Etron 40 Basic Circuits Labs Kit | Etron | $24.95 |
| 16427 | Etron 40 Digital Circuits Lab Kit | Etron | $41.95 |
| 15797 | Eureka Ball | Creative Whack | $22.99 |
| 16725 | Evaporating Dish 150ml | xUmp.com | $2.79 |
| 16839 | Evolution Robot - Programmable Robotics Kit | Clementoni | $105.00 |
| 15712 | Executive Chrome Newtons Cradle | xUmp.com | $22.99 |
| 15381 | Explore Geology - 24 Rocks & Minerals Set | xUmp.com | $9.99 |
| 13155 | Extraordinary Ordinary Prepared Slide Set | C & A Scientific | $9.99 |
| 16833 | Face Masks - 3 Ply Earloop General Purpose | xUmp.com | $4.99 |
| 16649 | Faceted High Grade Iron Pyrite 2-3 inch Chunk | xUmp.com | $29.99 |
| 16476 | Fan DIY Micro Car Kit | xUmp.com | $4.49 |
| 16542 | Fan Propeller with Soft Blades | xUmp.com | $0.99 |
| 15785 | Fanimals - LED Light-up Hand-held Fan | Toysmith | $12.50 |
| 14610 | Fart Bombs | Toysmith | $2.59 |
| 16393 | Fart Bombs XL - 3 pack | Toysmith | $7.99 |
| 13347 | Fiery Mood Ring | Geocentral | $3.99 |
| 15684 | Filter Paper - 4x4 - pack of 100 | xUmp.com | $6.99 |
| 13434 | Fire Syringe | xUmp.com | $19.99 |
| 13791 | Flame Salts Chemstry Set | Winsco | $79.99 |
| 12254 | Flashing Neutron Ball | Toysmith | $3.99 |
| 14624 | Flask Electroscope for Electrostatic Experiments | xUmp.com | $11.99 |
| 15816 | Flask Stand - Polypropylene | xUmp.com | $6.99 |
| 14102 | Flat Aluminum Electrode | xUmp.com | $0.99 |
| 14071 | Flat Carbon Electrode | xUmp.com | $2.49 |
| 14069 | Flat Copper Electrode | xUmp.com | $1.99 |
| 15672 | Flat Iron Electrode | xUmp.com | $0.99 |
| 16662 | Flat Nickel-Plated Electrode | xUmp.com | $2.99 |
| 14072 | Flat Pure Nickel Electrode | xUmp.com | $7.99 |
| 14070 | Flat Zinc Electrode | xUmp.com | $1.99 |
| 15909 | Flexible Clamp | xUmp.com | $29.95 |
| 14909 | Flexinol MuscleWire - 70 deg C - 1m | xUmp.com | $5.99 |
| 12836 | Fling-Zing Chinese Yo-Yo | Toysmith | $0.99 |
| 13987 | Flint Dropper Bottle - 1oz Single | xUmp.com | $1.99 |
| 16156 | Flip Sand Art - Black and White | xUmp.com | $15.00 |
| 13390 | Floating Colors Timer | xUmp.com | $4.95 |
| 10230 | Floating Magnet Rings Kit | Dowling Magnets | $6.99 |
| 13157 | Flower Power Prepared Slide Set | C & A Scientific | $9.99 |
| 13790 | Fluorescent Liquids Set | Winsco | $69.99 |
| 14236 | Fluorescent Minerals Collection | xUmp.com | $39.00 |
| 12300 | Fluorite - Bulk Mineral | Geocentral | $1.49 |
| 14126 | Folding Binoculars | Toysmith | $5.49 |
| 14075 | Force and Reaction Fan Car | xUmp.com | $14.99 |
| 13431 | Force Table - Physics Classroom Demo | xUmp.com | $169.00 |
| 16181 | Fossil Fish | xUmp.com | $12.99 |
| 16733 | Fossil Hunt Geology Kit | xUmp.com | $24.99 |
| 14237 | Fossil Starter Bag | xUmp.com | $15.99 |
| 16727 | Fossils Videolab - 9 Lab Stations, Video DVD and Teacher's Guide | xUmp.com | $189.99 |
| 16210 | Four Legged ALLBOT - Arduino Robot Kit | Velleman | $149.99 |
| 16930 | Fresnel Lens – with 25 Frames | | $2.19 |
| 10127 | Fresnel Lens Sheet | xUmp.com | $1.99 |
| 15764 | Fuchsite - Large Chunk (2-3 inch) | xUmp.com | $4.99 |
| 13442 | Fuel Cell 10 Kit | Thames & Kosmos | $149.00 |
| 12182 | Fuel Cell X7 Kit | Thames & Kosmos | $129.00 |
| 14601 | Fulgurite - Lightning in a Box | xUmp.com | $4.99 |
| 16085 | Fun Building Gift Set | xUmp.com | $35.00 |
| 13159 | Fun Guys Prepared Slide Set | C & A Scientific | $9.99 |
| 14510 | Fun Straws | Play Visions | $7.00 |
| 12243 | Galactic Robot Wind-Up | xUmp.com | $2.99 |
| 16858 | Galileo Thermometer - 11 inch tall | | $19.00 |
| 16859 | Galileo Thermometer - 17 inch tall | | $37.00 |
| 16710 | Galileo Thermometer Sphere by Kikkerland | Kikkerland | $19.00 |
| 16437 | Galvanized Wire | xUmp.com | $2.99 |
| 14260 | Garnet - Bulk Mineral | Geocentral | $1.49 |
| 16928 | Gas Generating Bottle - 250 mL | | $14.99 |
| 14836 | Gas Law Apparatus | xUmp.com | $119.00 |
| 16328 | Geared DC Motor | xUmp.com | $2.99 |
| 15866 | Geared DC Motor and Toy Car Wheel Set | xUmp.com | $5.99 |
| 16655 | Geared Micro DC Motor - 60RPM 6V | xUmp.com | $5.99 |
| 16334 | Geckobot | Thames & Kosmos | $45.00 |
| 16791 | Gel Ant Habitat with LED Lights | xUmp.com | $23.97 |
| 14025 | Gems of the USA | Copernicus Toys | $5.99 |
| 15169 | General Fossil Collection | xUmp.com | $25.00 |
| 12731 | Genetics & DNA Kit | Thames & Kosmos | $34.99 |
| 14598 | Genuine Meteorite - Large 40g Chunk | xUmp.com | $39.99 |
| 14599 | Genuine Meteorite Necklace | xUmp.com | $12.99 |
| 14209 | Genuine Meteorites | xUmp.com | $7.99 |
| 16390 | GeoCentral Crystals Science Kit | Geocentral | $12.99 |
| 16389 | GeoCentral Fossils Science Kit | Geocentral | $12.99 |
| 14161 | GeoCentral Igneous Rock Science Kit | Geocentral | $12.99 |
| 14261 | GeoCentral Minerals Science Kit | Geocentral | $12.00 |
| 14777 | GeoCentral Rock Science Kit | Geocentral | $13.00 |
| 14159 | GeoCentral Sedimentary Rock Science Kit | Geocentral | $12.99 |
| 11418 | Geometry 2 Study Chart | BarCharts | $5.99 |
| 15556 | Giant 20 inch Inflatable Globe | Tedco | $14.50 |
| 16827 | Giant Metal Spring - 3.75 inch diameter | | $8.50 |
| 16381 | Giant Shark Tooth Fossil - 2 inch | xUmp.com | $5.99 |
| 15547 | Giant Solar Balloon - 50 feet | Tedco | $18.99 |
| 15687 | Glass Alcohol Thermometer - Dual C/F Scale | xUmp.com | $3.59 |
| 13607 | Glass Beads | xUmp.com | $12.00 |
| 14275 | Glass Beaker - 1000ml | xUmp.com | $6.99 |
| 14274 | Glass Beaker - 100ml | xUmp.com | $2.49 |
| 13060 | Glass Beaker - 250ml | xUmp.com | $2.99 |
| 16244 | Glass Beaker - 50ml | xUmp.com | $2.19 |
| 13061 | Glass Beaker - 600ml | xUmp.com | $3.99 |
| 14254 | Glass Beaker Mug - 400ml | xUmp.com | $14.99 |
| 14282 | Glass Boiling Flask - 1000ml | xUmp.com | $15.99 |
| 14279 | Glass Boiling Flask - 100ml | xUmp.com | $3.49 |
| 14280 | Glass Boiling Flask - 250ml | xUmp.com | $4.99 |
| 14281 | Glass Boiling Flask - 500ml | xUmp.com | $5.99 |
| 16548 | Glass Boiling Flask - Round Bottom - 1000ml | xUmp.com | $12.99 |
| 16546 | Glass Boiling Flask - Round Bottom - 250ml | xUmp.com | $3.20 |
| 16547 | Glass Boiling Flask - Round Bottom - 500ml | xUmp.com | $4.25 |
| 15355 | Glass Burette - 100ml | xUmp.com | $26.99 |
| 15353 | Glass Burette - 25ml | xUmp.com | $19.99 |
| 15354 | Glass Burette - 50ml | xUmp.com | $22.99 |
| 14276 | Glass Erlenmeyer Flask - 100ml | xUmp.com | $2.79 |
| 13058 | Glass Erlenmeyer Flask - 250ml | xUmp.com | $4.49 |
| 13059 | Glass Erlenmeyer Flask - 500ml | xUmp.com | $6.49 |
| 16245 | Glass Erlenmeyer Flask - 50ml Widemouth | xUmp.com | $2.49 |
| 14362 | Glass Erlenmeyer Mug - 400ml | xUmp.com | $14.99 |
| 13068 | Glass Eye Dropper | xUmp.com | $0.79 |
| 15365 | Glass Filtering Flask - 1000ml | xUmp.com | $20.99 |
| 15363 | Glass Filtering Flask - 250ml | xUmp.com | $10.99 |
| 15364 | Glass Filtering Flask - 500ml | xUmp.com | $14.99 |
| 13062 | Glass Graduated Cylinder - 100ml | xUmp.com | $4.99 |
| 14278 | Glass Graduated Cylinder - 250ml | xUmp.com | $7.99 |
| 13063 | Glass Graduated Cylinder - 500ml | xUmp.com | $10.99 |
| 16243 | Glass Graduated Cylinder - 50ml | xUmp.com | $2.99 |
| 16505 | Glass Lab Putty | xUmp.com | $5.99 |
| 15350 | Glass Lens & Prisms Set | xUmp.com | $29.99 |
| 10877 | Glass Lens Set, Set of 6 | xUmp.com | $10.99 |
| 15681 | Glass Mirror - 4 x 4 inches | xUmp.com | $1.79 |
| 16246 | Glass Pipette MOHR - 10ml | xUmp.com | $1.99 |
| 15696 | Glass Plates - 10 pack | xUmp.com | $19.99 |
| 15369 | Glass Separatory Funnel - 100ml | xUmp.com | $19.99 |
| 15370 | Glass Separatory Funnel - 250ml | xUmp.com | $24.99 |
| 16448 | Glass Stir Rod - 6 inch | xUmp.com | $0.39 |
| 16722 | Glass Stir Rod - 8 inch | xUmp.com | $0.59 |
| 13067 | Glass Test Tube | xUmp.com | $0.79 |
| 15685 | Glass Tubing Cutter | xUmp.com | $11.99 |
| 15367 | Glass Volumetric Flask - 100ml | xUmp.com | $6.49 |
| 15368 | Glass Volumetric Flask - 250ml | xUmp.com | $14.99 |
| 15366 | Glass Volumetric Flask - 50ml | xUmp.com | $5.99 |
| 16478 | Glow Crystal Growing 4M Kit | 4M | $9.50 |
| 13736 | Glow Glux | Copernicus Toys | $6.99 |
| 16170 | Glow Human Skeleton 4M Kit | 4M | $12.00 |
| 16506 | Glow Lab Scientific Putty | xUmp.com | $5.99 |
| 14976 | Glow Skeleton T-Shirt | xUmp.com | $9.99 |
| 15736 | Glowing Chemistry Kit | Thames & Kosmos | $39.95 |
| 10547 | Glowing Gel Experiment Kit | Copernicus Toys | $18.00 |
| 14579 | Glow-in-the-Dark Moonstones | Play Visions | $4.99 |
| 14633 | Glow-in-the-Dark Rock | Geocentral | $2.00 |
| 10442 | Glow-in-the-Dark Star Finder | xUmp.com | $5.99 |
| 14805 | Gold Glux | Copernicus Toys | $6.99 |
| 16794 | Gold Pin Art - Desktop Art | Toysmith | $22.50 |
| 15753 | Golden Mica with Tourmaline - Large Chunk (2-3 inch) | xUmp.com | $10.99 |
| 15979 | Goniatite - 2 inch Real Fossil | xUmp.com | $5.99 |
| 15358 | Graham Condenser | xUmp.com | $29.99 |
| 16679 | Gravitrax - Expansion Building Set | | $24.99 |
| 16894 | Gravitrax - Expansion Lifter Set | | $24.99 |
| 16680 | Gravitrax - Expansion Trax Set | | $24.99 |
| 16681 | Gravitrax - Gravity Hammer - Add On | | $9.99 |
| 16683 | Gravitrax - Looping - Add On | | $9.99 |
| 16682 | Gravitrax - Magnetic Cannon - Add On | | $9.99 |
| 16892 | Gravitrax - Scoop - Add On | | $9.99 |
| 16893 | Gravitrax - Trampoline - Add On | | $9.99 |
| 16678 | Gravitrax Starter Set - STEM Marble Run with VR | | $57.00 |
| 15447 | Gravitron Gyro | Tedco | $9.00 |
| 16118 | Green Cotton Pulley Thread | xUmp.com | $3.99 |
| 13815 | Green Laser Pointer | xUmp.com | $19.00 |
| 13482 | Green Laser Pointer - Silver | xUmp.com | $29.00 |
| 16875 | Green Neon Bulb - 6mm x 16mm - for Electro-Static Experiments | xUmp.com | $1.95 |
| 15977 | Green Rose Chafer Beetle - Open Wings Specimen | Real Insect | $8.99 |
| 15973 | Green Rose Chafer Beetle - Small Specimen | Real Insect | $3.99 |
| 16375 | Green Slag - Large Chunk (2-3 inch) | xUmp.com | $3.99 |
| 16561 | Grow a Blue Crystal Kit | Thames & Kosmos | $5.99 |
| 16562 | Grow a Green Crystal | Thames & Kosmos | $5.99 |
| 16728 | Growing Rock Crystals | xUmp.com | $8.99 |
| 16775 | Gumball Machine Maker Kit | Thames & Kosmos | $45.00 |
| 10975 | Gypsum Rosettes - Bulk Mineral | Geocentral | $1.49 |
| 10876 | Hand Held DC Generator | xUmp.com | $14.00 |
| 16939 | Hand Vacuum Pump - without gauge | | $19.95 |
| 10166 | Handheld UV Light | xUmp.com | $7.49 |
| 16746 | Happy and Sad Balls - Collisions Demo | | $5.99 |
| 16332 | Happy Atoms Kit - Complete Set - 50 Atoms | Thames & Kosmos | $149.00 |
| 15145 | Harbottle Apparatus | xUmp.com | $19.99 |
| 14408 | Hard Hat - Head Protection in the Laboratory | xUmp.com | $9.99 |
| 12465 | Hatchin Grow Dino | Toysmith | $3.29 |
| 10875 | Heat Conductometer | xUmp.com | $11.99 |
| 16789 | Heat Mantle - for Laboratory Use | xUmp.com | $119.00 |
| 15845 | Heat Transfer Science Kit | xUmp.com | $36.99 |
| 16692 | Heat-Resistant Polyimide Tape - 2cm x 30m | xUmp.com | $5.99 |
| 14244 | Helium Spectrum Discharge Tube | xUmp.com | $19.99 |
| 15774 | Heros Engine Flask | xUmp.com | $22.00 |
| 16608 | Hoberman Mini Sphere - Expanding Universe Glow | Hoberman | $17.95 |
| 13948 | Hoberman Original Mini Sphere | Hoberman | $17.00 |
| 12538 | Hoberman Sphere - Universe Glow | Hoberman | $39.00 |
| 14835 | Hoffman Screw Clamp for Chemistry Lab | xUmp.com | $2.00 |
| 16550 | Hook Collar Clamp | xUmp.com | $3.29 |
| 13549 | Hook Magnet - 8lb Pull | xUmp.com | $1.89 |
| 15852 | Hooked Brass Weight - 100g | xUmp.com | $5.99 |
| 15851 | Hooked Brass Weight - 50g | xUmp.com | $3.49 |
| 13415 | Hook-Up Wire on Spool - Black | Elenco | $2.99 |
| 13416 | Hook-Up Wire on Spool - Red | Elenco | $2.99 |
| 15674 | Horizontal Cast and Collision Tester | xUmp.com | $49.00 |
| 15650 | Hot Plate - 6 inch 1000W | xUmp.com | $19.00 |
| 14157 | Hot Plate with Magnetic Stirrer | xUmp.com | $179.00 |
| 15337 | How Clean is the Air? Kit | xUmp.com | $29.95 |
| 15338 | How Clean is the Water? Kit | xUmp.com | $55.00 |
| 10838 | Human Anatomy Model - Large 20 in | Elenco | $109.00 |
| 10867 | Human Brain Model | xUmp.com | $45.99 |
| 10881 | Human Ear Model - Large | xUmp.com | $52.99 |
| 11025 | Human Eye Anatomy Model | xUmp.com | $42.99 |
| 15235 | Human Kidney Anatomy Model | xUmp.com | $42.99 |
| 10880 | Human Skull Biology Model | xUmp.com | $49.00 |
| 16915 | Human Torso Anatomy Model - 45cm | | $75.00 |
| 16933 | Human Torso Model with 15 Removable Parts - 10 inch tall | | $49.95 |
| 16749 | Human/Animal Prepared Biology Slide Set - 25 slides | xUmp.com | $19.99 |
| 10444 | Human-Powered Light Bulb | Copernicus Toys | $3.99 |
| 16366 | Hydraulic Arm EDGE Kit | OWI | $54.99 |
| 14249 | Hydrogen Spectrum Discharge Tube | xUmp.com | $19.99 |
| 13443 | Hydropower Science Kit | Thames & Kosmos | $49.00 |
| 16370 | Ice Calcite - Large Chunk (2-3 inch) | xUmp.com | $3.99 |
| 15773 | Ice Melting Kit | xUmp.com | $22.99 |
| 16729 | Igneous Rock Bag - 6pcs | xUmp.com | $5.49 |
| 14933 | Illuminated LED Loupe | xUmp.com | $6.99 |
| 15605 | Illuminated Mini 16X Microscope | xUmp.com | $5.99 |
| 14226 | Illuminated Orbiter - Sun-Moon-Earth | xUmp.com | $249.00 |
| 11321 | Illusion Science 4M Kit | 4M | $12.99 |
| 16738 | Impact Safety Goggles - Indirect Ventilation | | $2.99 |
| 14829 | Inclined Plane - Physics Classroom Demo | xUmp.com | $59.99 |
| 13156 | Incredible Edible Plants Prepared Slide Set | C & A Scientific | $9.99 |
| 14229 | Inflatable Human Torso Model | xUmp.com | $21.99 |
| 14406 | Inflatable Pillow | xUmp.com | $3.49 |
| 10508 | Inflatable World Globe - 12in | xUmp.com | $1.79 |
| 15171 | Inflatable Writable Globe - 24 inch | xUmp.com | $12.00 |
| 16909 | In-Line USB Voltage and Current Meter 3.3-18V 0-3A | xUmp.com | $6.95 |
| 15956 | Insectoid 4M Robot Kit | 4M | $16.99 |
| 16745 | Insulating Dough 10oz | | $24.99 |
| 13981 | Internal Combustion Engine Model - Gasoline | xUmp.com | $49.00 |
| 15315 | Interplanetary Tattoos | Copernicus Toys | $5.99 |
| 16571 | Intllab Magnetic Stirrer MS-500 | xUmp.com | $49.99 |
| 10570 | Inventors Playing Cards | xUmp.com | $6.99 |
| 16409 | Invisible Ink Pen and UV Light | xUmp.com | $1.49 |
| 14920 | IR Light Barrier Solder Kit | Velleman | $11.99 |
| 10153 | Iron Filings - 12oz Bottle | Dowling Magnets | $8.99 |
| 13757 | Iron Filings Case | xUmp.com | $1.99 |
| 15755 | Iron Pyrite - Large Chunk (2-3 inch) | xUmp.com | $4.99 |
| 16184 | Iron Pyrite Cube in Limestone Matrix | xUmp.com | $13.99 |
| 12255 | IsoFlex Ball | Toysmith | $4.99 |
| 10421 | Jacob's Ladder | Toysmith | $4.99 |
| 10327 | Jumbo Compass - 3 inch diameter | xUmp.com | $2.99 |
| 16412 | Jumbo Glitter Poppin Hopper | Toysmith | $0.99 |
| 13758 | Jumbo Magnetic Marbles - set of 5 | xUmp.com | $4.99 |
| 15781 | Jumbo Spiral Glitter Wand | Toysmith | $6.99 |
| 10436 | Kaleidoscope Making 4M Kit | 4M | $10.00 |
| 13071 | Kids Chemical Safety Goggles | xUmp.com | $3.49 |
| 15223 | Kids First Chemistry Set | Thames & Kosmos | $39.00 |
| 16778 | Kids First Coding & Robotics Challenge Pack | Thames & Kosmos | $25.00 |
| 16836 | Kids First Crystals, Rocks & Minerals Kit | | $37.00 |
| 15986 | Kids First Physics Lab Kit | Thames & Kosmos | $39.00 |
| 16777 | Kids First Robot Safari Kit | Thames & Kosmos | $29.95 |
| 13793 | Kids Pi Math T-Shirt | xUmp.com | $12.00 |
| 15957 | KidzLabs 4M Crystal Science Kit | 4M | $12.00 |
| 16585 | Kiko Robot Kit | OWI | $39.00 |
| 13775 | Kilovoltron Van de Graaff Generator | Winsco | $279.00 |
| 15925 | Kingii Dragon Robot Kit | OWI | $37.00 |
| 16544 | Kjeldahl Bulb | xUmp.com | $4.50 |
| 16545 | Kjeldahl Bulb with Stoppers | xUmp.com | $10.99 |
| 13854 | Knife Switch - Double Pole Double Throw | xUmp.com | $3.49 |
| 15149 | Knife Switch - Single Pole Double Throw | xUmp.com | $2.49 |
| 11571 | Konus MotorMax-90 Telescope | Konus | $295.00 |
| 14247 | Krypton Spectrum Discharge Tube | xUmp.com | $19.99 |
| 16351 | Lab DC Switching Power Supply 0-30V 0-3A | Velleman | $99.99 |
| 14256 | Laboratory Counter / Timer | xUmp.com | $6.49 |
| 14874 | Laboratory Gyroscope | xUmp.com | $29.99 |
| 16551 | Laboratory Protection Apron | xUmp.com | $8.75 |
| 14142 | Laboratory Scissor Jack - Black Enamel | xUmp.com | $37.99 |
| 14855 | Laboratory Scissor Jack - Stainless Steel | xUmp.com | $44.99 |
| 14812 | Laboratory Vacuum Pump, 110V | xUmp.com | $209.00 |
| 16646 | Labradorite Chunk - 1 inch with One Polished Side | xUmp.com | $5.99 |
| 14035 | Lamp Board - 5 lamps | xUmp.com | $15.99 |
| 13702 | Large DNA Model - Classroom Demo | xUmp.com | $79.00 |
| 16792 | Large Infinity Mirror - Optics Demo | xUmp.com | $49.99 |
| 14936 | Large Plastic Vernier Calipers | xUmp.com | $1.49 |
| 15351 | Large Spherical Convex Mirror | xUmp.com | $65.00 |
| 15534 | Large Tarantula Specimen | Real Insect | $49.99 |
| 16643 | Laser Fog Light Show | Toysmith | $75.00 |
| 16767 | Laser Pointer Holder Clamp - 16mm | xUmp.com | $19.99 |
| 16554 | Laser Ray Box - 3 Red Beams | xUmp.com | $34.99 |
| 16391 | Lava In a Bottle | Geocentral | $4.99 |
| 15129 | Lazer Fingers | Toysmith | $2.99 |
| 14788 | Lead-Free Solder Spool - 100g | Velleman | $14.99 |
| 16784 | Lead-Free Solder with Dispenser 0.5oz | Velleman | $3.29 |
| 10210 | Learn To Solder Siren Kit | Elenco | $19.99 |
| 13955 | LED - Green 5mm 565nm 2.6V | xUmp.com | $0.29 |
| 13956 | LED - Red 5mm 635nm 2.6V | xUmp.com | $0.29 |
| 16481 | LED - UV 5mm 400nm 3.5V | xUmp.com | $0.29 |
| 14646 | LED Pocket Microscope 20x - 40x | xUmp.com | $22.99 |
| 14801 | LED Robot Blinker Electronics Solder Kit | Elenco | $9.99 |
| 14784 | LEDs Set - Assorted 80pcs | Velleman | $14.95 |
| 14617 | Lemon Clock | Toysmith | $5.99 |
| 14638 | Lenz Law Copper Tube | xUmp.com | $17.99 |
| 15766 | Lepidolite - Large Chunk (2-3 inch) | xUmp.com | $8.99 |
| 10157 | Levitation Set | Dowling Magnets | $36.99 |
| 13978 | Leyden Jar - Separable | xUmp.com | $12.00 |
| 16923 | Liebig Condenser - 200mm | | $11.99 |
| 16538 | Life Cycle of Cabbage Butterfly - Real Specimen | Real Insect | $49.99 |
| 14443 | Life Cycle of Frog - Real Specimen | Real Insect | $20.99 |
| 16537 | Life Cycle of Honeybee - Real Specimen | Real Insect | $49.99 |
| 15937 | Life Cycle of Silkworm - Real Specimen | Real Insect | $19.99 |
| 10866 | Life-Size Human Heart Model | xUmp.com | $44.99 |
| 11958 | Life-Size Human Skeleton | xUmp.com | $329.00 |
| 13532 | Light Crystal Prism - Large | Tedco | $12.50 |
| 16632 | Light-Up Mini Marquee | Schylling | $10.99 |
| 16637 | Light-Up Speech Bubble Message Board | xUmp.com | $10.00 |
| 13158 | Lily Pad Leap Prepared Slide Set | C & A Scientific | $9.99 |
| 16327 | Line Tracking Car DIY Kit | xUmp.com | $5.00 |
| 15375 | Liquid Crystal Temperature Strip | xUmp.com | $15.99 |
| 15589 | Liquid Crystal Thermometer Stickers - 5 pack | xUmp.com | $5.99 |
| 15596 | Liquid Filled Compass - 1.75 inch | xUmp.com | $1.19 |
| 16865 | Living to Extinct Dinosaur Temp-Changing Coffee Mug | | $10.99 |
| 15536 | Locust Specimen | Real Insect | $14.99 |
| 10154 | Lodestone - Automagnetised Magnetite | Dowling Magnets | $1.49 |
| 15472 | Lodestone Chunk - Automagnetised Magnetite | xUmp.com | $3.99 |
| 13417 | Logic Probe | Elenco | $22.99 |
| 16119 | Long Metal Coil Spring - Extends to 30 feet | xUmp.com | $15.99 |
| 16936 | Loop The Loop Track | | $29.95 |
| 13792 | Lucite Light Rod - For Fiberoptics Demos | Winsco | $29.95 |
| 16099 | Lunar Light Show | Toysmith | $20.00 |
| 15148 | Lung Demo Science Kit | xUmp.com | $27.00 |
| 15847 | Luster Rocks Kit | xUmp.com | $21.99 |
| 16068 | MaBoRun - Amazing Combo | MaBoRun | $29.95 |
| 16073 | MaBoRun - Mini Spinning Discs | MaBoRun | $16.00 |
| 16072 | MaBoRun - Mini Tornado | MaBoRun | $16.00 |
| 13429 | Magdeburg Hemispheres | xUmp.com | $6.99 |
| 14005 | Magformers - 30pc Set | Magformers | $28.00 |
| 16042 | Magformers Inspire Set - 30pc | Magformers | $29.00 |
| 16041 | Magformers Math Activity Set - 124pc | Magformers | $175.00 |
| 15116 | Magic Bullet Train Magnet Kit | Dowling Magnets | $24.99 |
| 16392 | Magic Eggs | Geocentral | $2.99 |
| 16095 | Magic Loops | Toysmith | $4.95 |
| 10228 | Magic Penny Magnet Kit | Dowling Magnets | $25.99 |
| 15526 | Magic Rocks | Toysmith | $4.99 |
| 12275 | Magic Worm | Toysmith | $2.00 |
| 15549 | Magical Crystal - Purple | Tedco | $9.99 |
| 14620 | Magleads - Black (set of 10) | xUmp.com | $15.95 |
| 14621 | Magleads - Red (set of 10) | xUmp.com | $15.95 |
| 15606 | Magnesium Flint Fire Starter | xUmp.com | $4.99 |
| 14897 | Magnet Science 4M Kit | 4M | $12.50 |
| 10261 | Magnet Strip Hold Its | Dowling Magnets | $0.79 |
| 11671 | Magnet Tape | Dowling Magnets | $7.99 |
| 16194 | Magnetic Dry-Erase Name Plates | Dowling Magnets | $14.99 |
| 16454 | Magnetic Ferrofluid Display | xUmp.com | $23.99 |
| 16529 | Magnetic Field Cube | xUmp.com | $39.99 |
| 14626 | Magnetic Field Model | xUmp.com | $39.99 |
| 14504 | Magnetic Glux | Copernicus Toys | $6.99 |
| 10441 | Magnetic Gyro-Fly Wheel | Toysmith | $3.75 |
| 16793 | Magnetic Iron Filings Saver | xUmp.com | $9.97 |
| 16563 | Magnetic Levitating Globe | xUmp.com | $75.00 |
| 16462 | Magnetic Levitation Express | OWI | $59.00 |
| 13698 | Magnetic Levitator - Classic | Toysmith | $10.99 |
| 16723 | Magnetic Lines of Force Viewer | xUmp.com | $19.00 |
| 15828 | Magnetic Match Rings | xUmp.com | $11.99 |
| 14913 | Magnetic Metal Clips - set of 4 | xUmp.com | $2.99 |
| 16735 | Magnetic Putty with Neo Magnet | xUmp.com | $9.00 |
| 13715 | Magnetic Rings and Stand Set | xUmp.com | $3.29 |
| 15726 | Magnetic Sand Timer | xUmp.com | $9.99 |
| 16397 | Magnetic Sphere with Iron Filings Kit | xUmp.com | $15.99 |
| 10534 | Magnetic Wand | Dowling Magnets | $2.49 |
| 16898 | Magnificent Dinosaur Machine Kit | | $19.50 |
| 16896 | Magnificent Flying Machine Kit | | $24.95 |
| 16897 | Magnificent Marble Machine Kit | | $22.50 |
| 16895 | Magnificent Walking Machine Kit | | $22.00 |
| 13849 | Magnifying Bug Viewer | xUmp.com | $4.39 |
| 16902 | Make a Dinosaur - Spinosaurus | | $17.50 |
| 16900 | Make a Dinosaur - Stegosaurus | | $17.50 |
| 16899 | Make a Dinosaur - T-Rex | | $18.00 |
| 16901 | Make a Dinosaur - Triceratops | | $18.00 |
| 10511 | Make Your Own Bubble Gum Kit | Copernicus Toys | $17.50 |
| 12659 | Mantis Specimen | Real Insect | $14.99 |
| 15692 | Mars Rock Kit | xUmp.com | $20.99 |
| 16304 | Mars Runner Flipper Car Wind-Up | xUmp.com | $2.99 |
| 13982 | Mass Force Demo Science Kit | xUmp.com | $12.99 |
| 14205 | Matched Halves Ammonite Fossil Set | xUmp.com | $4.99 |
| 15258 | Math Magic 4M Kit | 4M | $14.99 |
| 14804 | Mathy Tattoos | Copernicus Toys | $5.99 |
| 10882 | Maxwells Wheel - Large | xUmp.com | $39.99 |
| 14141 | Measuring Plastic Jug with Handle | xUmp.com | $2.99 |
| 16121 | Measuring Tape - 10 pack - 60inch 150cm | xUmp.com | $4.99 |
| 13333 | Meccano Super Construction Set - 638 Pieces | Erector | $119.00 |
| 16556 | Mechanical Engineering: Robotic Arms | Thames & Kosmos | $59.00 |
| 16843 | Mechanics Lab - Cranes - Motorized Construction Models Kit | Clementoni | $49.00 |
| 16844 | Mechanics Lab - Planes and Helicopter Kit | Clementoni | $39.00 |
| 16842 | Mechanics Lab - Police Car - Remote Control Kit | | $75.00 |
| 16179 | Metacanthina Trilobite | xUmp.com | $19.99 |
| 16940 | Metal Alcohol Burner | | $22.95 |
| 16734 | Metal Disc Set - 8 Metals - Stamped 1inch | xUmp.com | $7.99 |
| 11682 | Metal Jax and Ball Set | Toysmith | $5.99 |
| 16630 | Metal Slime Bot | Schylling | $4.99 |
| 15602 | Metal Vernier Caliper - 6inch/150mm | xUmp.com | $12.00 |
| 16503 | Metallic Lab Putty | xUmp.com | $5.99 |
| 16615 | Metallic Minerals Science Kit | xUmp.com | $10.00 |
| 16730 | Metamorphic Rock Bag - 6pcs | xUmp.com | $5.49 |
| 16635 | Meteorite Outer Space Excavation Kit | xUmp.com | $2.99 |
| 16321 | Micro Speaker - 8ohm 1W with leads | xUmp.com | $2.09 |
| 16526 | Micro Vibration Motor - 1.5V 6x12mm | xUmp.com | $1.39 |
| 13605 | Microscope Cover Glass - 18x18mm 100pcs | xUmp.com | $1.49 |
| 13606 | Microscope Cover Glass - 22x22mm 100pcs | xUmp.com | $1.99 |
| 13160 | Microscope Slide Box - 50 Slides Capacity | C & A Scientific | $3.99 |
| 14613 | Mighty Magnet Set | Toysmith | $9.99 |
| 13218 | Mineral Science Kit | Toysmith | $9.50 |
| 14232 | Mineral Test Kit | xUmp.com | $11.99 |
| 15633 | Mini Cloth Measure Keychain | xUmp.com | $0.79 |
| 16905 | Mini COB Bulb - Blue - E10 3VDC 0.18W | xUmp.com | $1.25 |
| 16906 | Mini COB Bulb - Green - E10 3VDC 0.18W | xUmp.com | $1.25 |
| 16907 | Mini COB Bulb - Red - E10 3VDC 0.18W | xUmp.com | $1.25 |
| 16904 | Mini COB Bulb - White - E10 3VDC 0.18W | xUmp.com | $1.25 |
| 16693 | Mini COB Spotlight Bulb - E10 3VDC 0.5W White | xUmp.com | $1.49 |
| 13975 | Mini DC Motor with Leads | xUmp.com | $2.79 |
| 16689 | Mini Digital 2-in-1 Voltmeter Ammeter - 100V 10A | xUmp.com | $4.99 |
| 14127 | Mini Dinosaur Excavation Kit | Toysmith | $3.99 |
| 15848 | Mini E10 Bulb Socket with Terminals - Pack of 10 | xUmp.com | $3.99 |
| 15673 | Mini E10 Lamp Holder with Springs | xUmp.com | $1.49 |
| 13974 | Mini E10 Lamp Receptacle | xUmp.com | $1.19 |
| 15868 | Mini Electronics Breadboard | xUmp.com | $2.49 |
| 15700 | Mini Folding Scissors | xUmp.com | $1.29 |
| 14665 | Mini Hobby Speaker - 2 inch 4 Ohms | xUmp.com | $2.29 |
| 16760 | Mini Hobby Speaker - Flat 36mm 8ohm 0.5W | xUmp.com | $1.29 |
| 15895 | Mini Knife Switch - 10 pack | xUmp.com | $14.99 |
| 11109 | Mini Knife Switch - Single | xUmp.com | $1.59 |
| 16694 | Mini LED Conelight Bulb - E10 3VDC White | xUmp.com | $1.29 |
| 16486 | Mini LED Light Bulb - Blue - 3V DC E10 0.06W | xUmp.com | $1.29 |
| 16487 | Mini LED Light Bulb - Green - 3V DC E10 0.06W | xUmp.com | $1.29 |
| 16488 | Mini LED Light Bulb - Red - 3V DC E10 0.06W | xUmp.com | $1.29 |
| 16485 | Mini LED Light Bulb - White - 3V DC E10 0.06W | xUmp.com | $1.29 |
| 16489 | Mini LED Light Bulb - Yellow - 3V DC E10 0.06W | xUmp.com | $1.29 |
| 16323 | Mini LED Microscope 160X-200X | xUmp.com | $8.99 |
| 16484 | Mini Light Bulb Holder - E10 with wire leads | xUmp.com | $1.39 |
| 11108 | Mini Lightbulbs - 1.5-3V E10 - Pack of 10 | xUmp.com | $2.49 |
| 16309 | Mini Liquid Compass - Pack of 10 | xUmp.com | $2.99 |
| 16117 | Mini Magnetic Pole Finder | xUmp.com | $5.95 |
| 10616 | Mini Plasma Ball | xUmp.com | $14.99 |
| 13558 | Mini Plastic Vernier Calipers | xUmp.com | $0.79 |
| 16527 | Mini Ripple Tank - Physics Classroom Demo | xUmp.com | $139.99 |
| 16093 | Mini Voice Changer | Toysmith | $10.00 |
| 14786 | Miniature Relay | Velleman | $1.79 |
| 16155 | Mirror Ball String Light | Fortune Products | $14.99 |
| 15907 | Modular AA Battery Holders - Block of 4 | xUmp.com | $4.95 |
| 13408 | Modular D Battery Holder - 1.5V | xUmp.com | $1.49 |
| 16931 | Molecules - Covalent Bonding Card Game | | $9.95 |
| 16034 | Momentary Push-Button Switch with Leads | xUmp.com | $1.99 |
| 14898 | Money Safe 4M Kit | 4M | $15.00 |
| 14023 | Monster Balloon | Copernicus Toys | $7.99 |
| 11686 | Mood Mudd | Toysmith | $4.49 |
| 16471 | Mood Ring | xUmp.com | $1.29 |
| 15693 | Moon Rock Kit | xUmp.com | $20.99 |
| 11820 | Moroccan Trilobite Fossil | xUmp.com | $7.99 |
| 13609 | Mortar and Pestle 30ml | C & A Scientific | $3.99 |
| 14680 | Mosasaur Dino Tooth | xUmp.com | $4.99 |
| 16238 | Mosasaur Teeth Composition | xUmp.com | $25.99 |
| 16650 | Mosasaurus Fossil Tooth in Matrix - Large | xUmp.com | $19.99 |
| 16651 | Mosasaurus Jaw Fossil in Matrix | xUmp.com | $79.99 |
| 15754 | Moscovite Mica - Large Chunk (2-3 inch) | xUmp.com | $6.99 |
| 16213 | Motor and Power Shield for Arduino | Velleman | $34.99 |
| 10156 | Motor Generator Set | Dowling Magnets | $36.99 |
| 16796 | Motorized Robotic Arm 4M Kit | 4M | $18.00 |
| 15071 | Moving Butterfly - Blue Morpho | xUmp.com | $28.00 |
| 15072 | Moving Butterfly - Monarch | xUmp.com | $29.99 |
| 16298 | Multicolor Yo-Yo Strings - 5 pack | Duncan | $3.99 |
| 15935 | Multifunction 60 SMD Flashlight | xUmp.com | $6.99 |
| 15198 | Multi-Function Survival Tool | xUmp.com | $1.79 |
| 16534 | Multi-Purpose Test Support Set | xUmp.com | $89.00 |
| 14903 | MuscleWire Demo Spring | xUmp.com | $9.99 |
| 14905 | MuscleWires Monster Moving Hand Kit | xUmp.com | $29.99 |
| 14904 | MuscleWires Project Book and Sample Kit | xUmp.com | $27.00 |
| 11215 | My First Lab Cordless ULTIMATE Microscope | C & A Scientific | $129.00 |
| 11739 | My First Lab Duo Microscope | C & A Scientific | $98.00 |
| 16776 | My Robotic Pet - Tumbling Hedgehog | Thames & Kosmos | $39.95 |
| 16097 | Mystery Fire | Toysmith | $3.99 |
| 10465 | Mystery Stick | Copernicus Toys | $1.59 |
| 16387 | N50 Neodymium Bar Magnet - 50x10x5mm | xUmp.com | $4.99 |
| 16388 | N50 Neodymium Cube Magnet - 10x10x10mm | xUmp.com | $2.29 |
| 16385 | N50 Neodymium Disc Magnet - 10x3mm | xUmp.com | $0.99 |
| 16386 | N50 Neodymium Disc Magnet - 20x5mm | xUmp.com | $2.79 |
| 15990 | Nanotechnology Science Kit | Thames & Kosmos | $99.00 |
| 16087 | Neon Bulb - 6mm x 16mm - for Electro-Static Experiments | xUmp.com | $0.59 |
| 14245 | Neon Spectrum Discharge Tube | xUmp.com | $19.99 |
| 13783 | Neon Wand for Electrostatic Experiments | Winsco | $69.00 |
| 15312 | Neutral Litmus Paper - 100 strips | xUmp.com | $1.29 |
| 15348 | Neutralization Lens Set | xUmp.com | $2.99 |
| 13886 | New York Demonstration Balance | xUmp.com | $39.00 |
| 15382 | Newton Spring Scale 5N | xUmp.com | $2.99 |
| 16921 | Newtonian Desk Toy | | $12.50 |
| 15591 | Newtons Color Disc | xUmp.com | $39.99 |
| 10063 | Newtons Cradle - Large - 7 inches | xUmp.com | $19.99 |
| 10808 | Newtons Cradle - Regular - 5.5 inches | xUmp.com | $14.99 |
| 16876 | Nickel Metal Cube - 10mm 99.95% Pure | xUmp.com | $17.95 |
| 16866 | Night to Day Temp-Changing Coffee Mug | | $9.00 |
| 16410 | NightZone Spoke Lights | Toysmith | $9.99 |
| 16342 | Nitinol Wire - 1ft | xUmp.com | $2.50 |
| 16834 | Nitrile Gloves for Kids - Powder Free X-Small | xUmp.com | $6.95 |
| 16830 | Nitrile Medical Grade Gloves - Powder Free - Large | xUmp.com | $7.95 |
| 14250 | Nitrogen Spectrum Discharge Tube | xUmp.com | $19.99 |
| 11163 | Noise Putty | Toysmith | $2.00 |
| 15727 | Nostalgic Pack Gyroscope | Tedco | $8.95 |
| 12837 | Number Slide Puzzle | Toysmith | $3.25 |
| 11198 | Obsidian Arrowhead | Geocentral | $0.99 |
| 15694 | Oceanic Fossils Set | xUmp.com | $4.99 |
| 14623 | Oersteds Law Apparatus | xUmp.com | $21.99 |
| 10435 | Old World Kaleidoscope | Toysmith | $7.99 |
| 16348 | Open DC Motor Demo - 4.5V | xUmp.com | $6.99 |
| 10968 | Optical Calcite - Bulk Mineral | Geocentral | $2.99 |
| 10544 | Optical Illusions Playing Cards | xUmp.com | $7.99 |
| 13445 | Optical Science Kit | Thames & Kosmos | $29.00 |
| 12472 | Oral Hygiene Anatomy Model | xUmp.com | $45.99 |
| 11199 | Orange Calcite - Bulk Mineral | Geocentral | $1.49 |
| 16371 | Orange Calcite - Large Chunk (2-3 inch) | xUmp.com | $3.99 |
| 16732 | Ores of Common Metals Kit - 15pcs | xUmp.com | $35.99 |
| 15004 | Original 1955 Duncan Wooden Tournament Yo-Yo | Duncan | $19.00 |
| 10835 | Original Butterfly Garden Kit with Voucher | Insect Lore | $24.99 |
| 15402 | Original Optic Wonder | Toysmith | $9.99 |
| 12528 | Original Slinky | POOF-Slinky | $5.49 |
| 13531 | Original TEDCO Gyroscope - Retro Twin Pack | Tedco | $14.99 |
| 15981 | Orthoceras - 1 inch Real Fossil | xUmp.com | $1.99 |
| 14207 | Orthoceras Book Ends | xUmp.com | $59.99 |
| 14206 | Orthoceras Fossil in a Box | xUmp.com | $3.99 |
| 16162 | Orthoceras Fossil Plate | xUmp.com | $15.99 |
| 15345 | Overflow Can | xUmp.com | $4.99 |
| 12970 | Owl Pellet | Copernicus Toys | $6.99 |
| 14251 | Oxygen Spectrum Discharge Tube | xUmp.com | $19.99 |
| 16795 | Paint Your Own Derby Racer Car | Toysmith | $8.50 |
| 16496 | Parachute Launchers | Play Visions | $5.50 |
| 15522 | Parafoil Kite | Toysmith | $7.99 |
| 16922 | Parallel Laser Ray Box - 5 Independent Beams | | $39.95 |
| 16443 | PCB Copper Board - 7x10cm | xUmp.com | $1.49 |
| 16432 | PCB Copper Prototype Board - 5x10cm | xUmp.com | $2.99 |
| 16713 | Peacock Ore - Large Chunk (2-3 inch) | xUmp.com | $10.99 |
| 14119 | Peg Game - Wooden Triangle Puzzle | Toysmith | $3.99 |
| 14916 | Peltier Thermo-Electric Cooling Module - 12V | xUmp.com | $4.99 |
| 15908 | Pendulum Wave Demo | xUmp.com | $49.99 |
| 15230 | Perfume Science Kit | Thames & Kosmos | $45.00 |
| 16851 | Perfumes & Cosmetics - Educational Fun Kit | Clementoni | $39.00 |
| 15324 | Periodic Table Banner Pen | xUmp.com | $2.99 |
| 15243 | Periodic Table Lamp | xUmp.com | $39.99 |
| 16863 | Periodic Table of Elements Coffee Mug | | $10.99 |
| 12166 | Periodic Table of Elements T-Shirt | xUmp.com | $14.99 |
| 11250 | Periodic Table Placemat | | $3.49 |
| 15097 | Periodic Table Reference Cards - 10 pack | xUmp.com | $2.99 |
| 10516 | Periscope | Toysmith | $19.99 |
| 10250 | Pet Tornado | Tedco | $4.99 |
| 16854 | Pet-Bits Cat - Coding Toy Robot | Clementoni | $22.50 |
| 16853 | Pet-Bits Dog - Coding Toy Robot | Clementoni | $25.00 |
| 13066 | Petri Dish - 100mm Glass | xUmp.com | $2.49 |
| 13065 | Petri Dish - 60mm Glass | xUmp.com | $1.49 |
| 16249 | Petri Dishes with Agar Set | xUmp.com | $12.99 |
| 13341 | Petrified Wood - Bulk Mineral | Geocentral | $1.49 |
| 16307 | PH Meter Calibration Buffer Powder - 10 pack | xUmp.com | $4.99 |
| 15598 | pH Paper Test Strips - Book of 100 | xUmp.com | $1.19 |
| 16324 | PH TDS Temp 3-in-1 Digital Meter | xUmp.com | $42.99 |
| 16271 | PhiTOP - Physics Spinning Top | PhiTop | $19.99 |
| 16690 | Photoresistor GL5516 | xUmp.com | $0.29 |
| 16848 | Physics and Engineering - Educational Kit | Clementoni | $49.00 |
| 11934 | Physics Pro Kit | Thames & Kosmos | $89.99 |
| 11367 | Physics Solar Workshop Kit v2 | Thames & Kosmos | $65.00 |
| 16826 | Physics Vortex Coin Bank | | $12.50 |
| 10931 | Physics Workshop Kit | Thames & Kosmos | $49.00 |
| 16864 | Pi Mug | | $10.99 |
| 14657 | Pi-Day T-Shirt | xUmp.com | $18.00 |
| 10252 | Pin Art - Large - 7 inches | Toysmith | $18.50 |
| 15983 | Pink Tourmaline in Quartz - Large Chunk (2-3 inch) | xUmp.com | $12.99 |
| 12268 | Pinky Ball | Toysmith | $2.49 |
| 13603 | Plain Microscope Slides - Pack of 12 | xUmp.com | $1.49 |
| 10873 | Plain Microscope Slides - Pack of 72 | C & A Scientific | $8.99 |
| 14269 | Plant Reproduction and Propagation - 10 Slides | Konus | $16.99 |
| 14198 | Plastic Balance Scale | xUmp.com | $13.00 |
| 13990 | Plastic Beaker - 250ml | xUmp.com | $1.79 |
| 13991 | Plastic Beaker - 500ml | xUmp.com | $2.79 |
| 10427 | Plastic Bubbles | Toysmith | $3.99 |
| 15360 | Plastic Erlenmeyer Flask - 250ml | xUmp.com | $4.29 |
| 15361 | Plastic Erlenmeyer Flask - 500ml | xUmp.com | $6.29 |
| 13608 | Plastic Forceps - Pack of 10 | xUmp.com | $2.29 |
| 14158 | Plastic Magnifying Lens - Dual 3X 6X | xUmp.com | $0.79 |
| 14817 | Plastic Measuring Cylinder - 100mL | xUmp.com | $2.49 |
| 14818 | Plastic Measuring Cylinder - 250mL | xUmp.com | $3.29 |
| 14819 | Plastic Measuring Cylinder - 500ml | xUmp.com | $5.99 |
| 16343 | Plastic Nesting Beakers - Set of 8 | xUmp.com | $14.99 |
| 16457 | Plastic Petri Dish - 55mm | xUmp.com | $0.49 |
| 16456 | Plastic Petri Dish - 85mm | xUmp.com | $0.79 |
| 16447 | Plastic Petri Dishes - 55mm - pack of 20 | xUmp.com | $9.49 |
| 16941 | Plastic Petri Dishes - 70mm - pack of 20 | | $12.95 |
| 16250 | Plastic Petri Dishes - 85mm - pack of 20 | xUmp.com | $14.99 |
| 13611 | Plastic Petri Dishes with Agar - Pack of 2 | C & A Scientific | $3.99 |
| 13557 | Plastic Syringe - 20ml Non-Sterile | xUmp.com | $0.99 |
| 11222 | Plastic Test Tube Rack | xUmp.com | $4.99 |
| 13610 | Plastic Test Tubes with Caps - Pack of 2 | C & A Scientific | $2.99 |
| 16490 | Plastic Vernier Calipers - 2pc Set | xUmp.com | $2.49 |
| 10258 | Plastic-Encased Block Magnet | Dowling Magnets | $1.49 |
| 10259 | Plastic-Encased Disc Magnet | Dowling Magnets | $1.39 |
| 16494 | Play Dirt! Bugs in a Jar | Play Visions | $7.00 |
| 13985 | Plexiglass Mirror - 3.5x2.5 inches - For Optics Experiments and School Craft Projects | xUmp.com | $1.79 |
| 14791 | PN2222A Transistor | xUmp.com | $0.19 |
| 14802 | Pocket Dice Electronics Solder Kit | Elenco | $15.00 |
| 16411 | Pocket Etch A Sketch | Toysmith | $8.99 |
| 13841 | Pocket Level Keychain | xUmp.com | $1.29 |
| 12256 | Pocket Star Finder | Toysmith | $5.99 |
| 16684 | Polished Agate Geode Halves - Matching Pair | xUmp.com | $9.95 |
| 16380 | Polished Fossil Coral | xUmp.com | $15.99 |
| 16647 | Polished Labradorite with Cut Base | xUmp.com | $29.99 |
| 15138 | Political Blue Ocean Globe - 4 inch | xUmp.com | $11.99 |
| 13492 | Pop-Up Butterfly Habitat | xUmp.com | $19.99 |
| 16927 | Porcelain Buchner Funnel - 100mm | | $8.39 |
| 16926 | Porcelain Buchner Funnel - 60mm | | $3.19 |
| 14482 | Porcelain Mortar and Pestle - 150mm | xUmp.com | $10.99 |
| 14481 | Porcelain Mortar and Pestle - 75mm | xUmp.com | $4.99 |
| 16677 | Portable Luggage Scale - up to 50kg/110lbs | xUmp.com | $9.99 |
| 16533 | Portable Micro Burner | xUmp.com | $39.95 |
| 13099 | Power House Kit v2.0 | Thames & Kosmos | $88.00 |
| 14926 | Power Pro DC Adapter - 12V 1000mA | xUmp.com | $4.99 |
| 14242 | Power Supply for Spectrum Discharge Tubes | xUmp.com | $179.99 |
| 15850 | Precision Weight Masses Set - 8 Pieces | xUmp.com | $8.99 |
| 10470 | Prepared Slide Set - Elementary | C & A Scientific | $19.99 |
| 10472 | Prepared Slide Set - High School | C & A Scientific | $39.99 |
| 10471 | Prepared Slide Set - Intermediate | C & A Scientific | $34.99 |
| 15600 | Professional Solder Tip Cleaner | Velleman | $9.99 |
| 15770 | Pulley Table Clamp | xUmp.com | $4.99 |
| 15678 | Pulley with Table Clamp | xUmp.com | $10.99 |
| 16401 | Pumice - Bulk Mineral | xUmp.com | $1.49 |
| 15048 | Purple Laser Pointer | xUmp.com | $19.00 |
| 16696 | Push-On Push-Off Micro Switch - 18x12mm | xUmp.com | $0.39 |
| 16166 | Pyrite Fools Gold - Large Chunk (2-3 inch) | xUmp.com | $2.99 |
| 15749 | Pyrolusite Geode | xUmp.com | $10.99 |
| 14045 | Quadruple Pulley | xUmp.com | $3.49 |
| 13661 | Quartz - Tumbled Bulk Mineral | xUmp.com | $1.49 |
| 14635 | Quartz Cluster - Small | Geocentral | $1.59 |
| 15751 | Quartz Crystal Cluster - Large Chunk (2-3 inch) | xUmp.com | $8.99 |
| 15763 | Quartz Crystal Point - Large Chunk (2-3 inch) | xUmp.com | $8.99 |
| 16185 | Quartz Obelisk | xUmp.com | $39.00 |
| 10970 | Quartz Point - Bulk Mineral | Geocentral | $1.59 |
| 16404 | Quartzite - Bulk Mineral | xUmp.com | $1.49 |
| 16783 | QuickHot Soldering Gun 30W-130W | Velleman | $9.99 |
| 15996 | Rain Gauge | xUmp.com | $2.00 |
| 14611 | Rainbow Glow Dough | Toysmith | $3.99 |
| 15524 | Rainbow Pom Ball | Toysmith | $3.99 |
| 14486 | Rattleback - Multicolor Pack of 10 | xUmp.com | $10.99 |
| 16555 | RC Machines: Construction Vehicles | Thames & Kosmos | $75.00 |
| 15989 | RC Machines: Space Explorers Kit | Thames & Kosmos | $79.00 |
| 13988 | Reagent Bottle - 500ml | xUmp.com | $4.99 |
| 15537 | Real 3D Crab Specimen | Real Insect | $14.99 |
| 16376 | Red Jasper - Large Chunk (2-3 inch) | xUmp.com | $3.99 |
| 16442 | Red Laser Pointer | xUmp.com | $19.00 |
| 15310 | Red Litmus Paper - 100 strips | xUmp.com | $1.29 |
| 16139 | Red Pi Mathematics T-Shirt | xUmp.com | $18.00 |
| 16079 | Red/Black Alligator-to-Banana Cable Pair - 1m | xUmp.com | $2.99 |
| 16463 | Red/Black Banana-to-Banana Cable Pair - 1m | xUmp.com | $2.99 |
| 16911 | Red/Blue North/South Magnet Marble | | $0.29 |
| 15107 | Red-Blue Ceramic Bar Magnet | Dowling Magnets | $1.59 |
| 15106 | Red-Blue Ceramic Horseshoe Magnet | Dowling Magnets | $1.29 |
| 16482 | Reed Magnetic Switch | xUmp.com | $0.39 |
| 15911 | Refraction Cup | xUmp.com | $2.99 |
| 16528 | Refraction Cup with Measurements | xUmp.com | $3.49 |
| 16333 | Remote-Control Machines: Custom Cars Kit | Thames & Kosmos | $79.00 |
| 16700 | Remote-Control Machines: Farm | Thames & Kosmos | $75.00 |
| 13774 | Replacement Belt for N-100V Winsco | Winsco | $21.99 |
| 13776 | Replacement Belt for N-105S Kilovoltron | Winsco | $24.95 |
| 14155 | Replacement Wicks - Pack of 12 | xUmp.com | $2.49 |
| 14781 | Resistors Set - Assorted 480pcs | Velleman | $7.99 |
| 14779 | Resonance Bowl | xUmp.com | $139.00 |
| 13263 | Revolving Multi-Color Fiberoptic Light | xUmp.com | $12.99 |
| 16154 | RGB Fiber-optic Installation Kit | Fortune Products | $119.99 |
| 15535 | Rhinoceros Beetle Specimen | Real Insect | $14.99 |
| 16407 | Right-Angle Acrylic Prism - 1 x 2 inches | xUmp.com | $3.29 |
| 14629 | Ring Tripod Stand | xUmp.com | $9.99 |
| 16837 | RoboMaker PRO - Educational Robotics Lab Kit | Clementoni | $119.00 |
| 13411 | Robotic Arm EDGE Kit | OWI | $49.99 |
| 15988 | Robotics Smart Machines Kit | Thames & Kosmos | $129.99 |
| 16772 | Robotics Smart Machines: Tracks & Treads | Thames & Kosmos | $134.95 |
| 16331 | Robotics Workshop Kit | Thames & Kosmos | $199.00 |
| 16701 | Robotics: Smart Machines - Rovers & Vehicles | Thames & Kosmos | $99.00 |
| 15662 | Rock and Mineral Excavation Mini Kit | Geocentral | $3.99 |
| 13217 | Rock Science Kit | Toysmith | $12.00 |
| 14024 | Rocks and Minerals of the USA | Copernicus Toys | $5.99 |
| 13887 | Roman Arch Kit | xUmp.com | $29.99 |
| 11200 | Rose Quartz - Bulk Mineral | Geocentral | $1.49 |
| 15756 | Rose Quartz - Large Chunk (2-3 inch) | xUmp.com | $4.99 |
| 13493 | Rotational Inertia Ring and Disk | xUmp.com | $49.99 |
| 15680 | Round Stacking Mass Set | xUmp.com | $2.99 |
| 12637 | Rubber Band Paddle Boat | Toysmith | $4.99 |
| 14478 | Rubber Grip - For Hot Beakers | xUmp.com | $9.99 |
| 14144 | Rubber Stopper - Size 1 | xUmp.com | $0.59 |
| 14145 | Rubber Stopper - Size 2 | xUmp.com | $0.59 |
| 14146 | Rubber Stopper - Size 3 | xUmp.com | $0.79 |
| 14147 | Rubber Stopper - Size 4 | xUmp.com | $0.79 |
| 14148 | Rubber Stopper - Size 5 | xUmp.com | $0.79 |
| 14149 | Rubber Stopper - Size 6 | xUmp.com | $0.99 |
| 14150 | Rubber Stopper - Size 7 | xUmp.com | $0.99 |
| 14151 | Rubber Stopper - Size 8 | xUmp.com | $1.29 |
| 14152 | Rubber Stopper - Size 9 | xUmp.com | $1.49 |
| 16736 | Rubber Tubing - 1/4 inch 10ft | xUmp.com | $5.99 |
| 16067 | Rubiks Cube | Rubiks | $12.99 |
| 16613 | Rubiks Tower Puzzle | Rubiks | $15.00 |
| 16782 | Running Microbug DIY Kit | Velleman | $9.50 |
| 14047 | Safe Plastic Slide Set - Animals | xUmp.com | $9.00 |
| 14048 | Safe Plastic Slide Set - Insects | xUmp.com | $9.00 |
| 14049 | Safe Plastic Slide Set - Plants | xUmp.com | $9.00 |
| 16247 | Safety Pipette Filler | xUmp.com | $4.89 |
| 16779 | Saguaro Cactus Crystal Growing Kit | Copernicus Toys | $7.95 |
| 14928 | Salt Water Fuel Cell Monster Truck | OWI | $24.99 |
| 16797 | Salt-Water Powered Truck 4M Kit | 4M | $12.00 |
| 10978 | Sandstone - Bulk Mineral | Geocentral | $1.49 |
| 16408 | Scale of Hardness Minerals Kit | xUmp.com | $20.00 |
| 15067 | Science Experiments On The Go Kit | Thames & Kosmos | $5.00 |
| 16847 | Science in the Laboratory - Educational Kit | Clementoni | $59.00 |
| 16197 | Science Pics Magnet Set | Dowling Magnets | $15.95 |
| 13271 | Science with Magnets Usborne Kid Kit | Usborne Books | $11.99 |
| 16652 | Science X: Electronics & Circuitry Kit | xUmp.com | $25.00 |
| 10569 | Scientists Playing Cards | xUmp.com | $6.99 |
| 16098 | Sci-Fi Tube - Energy Stick | Toysmith | $9.99 |
| 12664 | Scorpion Specimen - Small | Real Insect | $8.99 |
| 16398 | Screen Sieves - set of 4 | xUmp.com | $65.00 |
| 11793 | Sea Monkeys Ocean Zoo | Schylling | $13.99 |
| 11795 | Sea Monkeys Original Instant Life | Schylling | $7.49 |
| 13330 | Sea-Monkeys MagiQuarium | Schylling | $15.00 |
| 16731 | Sedimentary Rock Bag - 6pcs | xUmp.com | $5.49 |
| 14230 | Seed Germination Kit | xUmp.com | $5.99 |
| 15714 | Seismic Accelerator | xUmp.com | $11.99 |
| 13343 | Selenite - Bulk Mineral | Geocentral | $1.49 |
| 16222 | Selenite - Large Chunk (2-3 inch) | xUmp.com | $3.99 |
| 12299 | Selenite Tower | Geocentral | $3.99 |
| 16648 | Selenite Wand - 4 to 8 inch | xUmp.com | $3.99 |
| 16702 | Sensors Alive: Bring Physics to Life | Thames & Kosmos | $135.00 |
| 16167 | Septarian Slab | xUmp.com | $3.99 |
| 16549 | Set of 24 Flint Glass Tubes - 5mm OD x 24 inches | xUmp.com | $19.99 |
| 16579 | Set of Multimeter Test Leads | Velleman | $2.99 |
| 16857 | Shark Hand Puppet | | $5.99 |
| 15088 | Shark Smart Playing Cards | xUmp.com | $5.99 |
| 15143 | Shark Tooth Fossil on Matrix | xUmp.com | $4.99 |
| 15978 | Shark Tooth Necklace | xUmp.com | $2.99 |
| 15906 | SHINCO-Scope Microscope with 5 Prepared Slides | xUmp.com | $99.99 |
| 13064 | Short Stem Funnel - 100ml Glass | xUmp.com | $4.99 |
| 16365 | Signal Generator - 1Hz to 8MHz | xUmp.com | $45.99 |
| 14975 | Silicone Mat for Chemistry Labs | xUmp.com | $8.99 |
| 15344 | Simple Halls Carriage | xUmp.com | $7.99 |
| 16771 | Simple Machines Physics Kit | Thames & Kosmos | $29.00 |
| 13888 | Simplified Stirling Engine | xUmp.com | $28.00 |
| 16180 | Single Orthoceras Fossil in Matrix | xUmp.com | $7.99 |
| 11103 | Single Pulley | xUmp.com | $1.79 |
| 16932 | Skeleton Model With Nerves - 34 inches tall | | $67.95 |
| 16614 | Slime Time Mix-It - Make Your Own Slime Kit | xUmp.com | $7.50 |
| 14031 | Slinky POP Toob | xUmp.com | $1.49 |
| 14076 | Slotted Weight Set with Hanger | xUmp.com | $15.00 |
| 16440 | Slush Stress Ball | Play Visions | $4.99 |
| 15422 | Small Red-Blue Ceramic Bar Magnet | Dowling Magnets | $1.29 |
| 16788 | Small Tesla Coil Demonstration | xUmp.com | $49.95 |
| 12831 | Smart Robot 4M Kit | 4M | $14.00 |
| 15362 | Smoke Paper (Touch Paper) | xUmp.com | $9.99 |
| 16183 | Smoky Quartz Cluster | xUmp.com | $9.99 |
| 15539 | Snake Skeleton Specimen | Real Insect | $49.99 |
| 16360 | Snap Circuits 3D Illumination Kit | Snap Circuits | $49.00 |
| 16567 | Snap Circuits 3D M.E.G. | Snap Circuits | $57.00 |
| 16361 | Snap Circuits Basic Electricity | Snap Circuits | $18.50 |
| 11998 | Snap Circuits Jr. | Snap Circuits | $29.50 |
| 15971 | Snap Circuits Jr. Select | Snap Circuits | $39.95 |
| 15838 | Snap Circuits Light with AC Adapter Kit | Snap Circuits | $95.00 |
| 15256 | Snap Circuits Motion Detector | Snap Circuits | $19.00 |
| 16565 | Snap Circuits Snapino | Snap Circuits | $35.00 |
| 15970 | Snap Circuits Sound & Light Deluxe Kit | Snap Circuits | $145.00 |
| 14822 | Soft Iron Rod | xUmp.com | $3.99 |
| 16785 | Solar & Battery Fan STEM Kit | xUmp.com | $4.95 |
| 13844 | Solar Car | xUmp.com | $21.95 |
| 16240 | Solar Cell - 1.5V 400mA 80x60mm | xUmp.com | $4.49 |
| 16574 | Solar Cell - 2V 130mA 54x54mm | xUmp.com | $2.99 |
| 16656 | Solar Cell - 5V 250mA 110x69mm | xUmp.com | $5.99 |
| 16658 | Solar DC Motor 400 - 1.5V to 3V | xUmp.com | $1.69 |
| 16090 | Solar DIY Micro Car Kit | xUmp.com | $4.49 |
| 14917 | Solar Energy Electronics Experiment Kit | Velleman | $29.99 |
| 16908 | Solar Mobile PowerBank - Water-Resistant | xUmp.com | $24.95 |
| 13921 | Solar Power Science Kit | Thames & Kosmos | $47.95 |
| 13679 | Solar Powered Solar System Kit | OWI | $21.99 |
| 10543 | Solar Print Kit | Toysmith | $14.95 |
| 10432 | Solar Print Refill Paper | Toysmith | $5.99 |
| 14218 | Solar Rover 4M Kit | 4M | $19.00 |
| 15042 | Solar Spinner | xUmp.com | $9.95 |
| 15168 | Solar System Orbiter with Sun, Earth and Moon | xUmp.com | $179.99 |
| 15167 | Solar System Simulator | xUmp.com | $124.99 |
| 13709 | Solar UV Beads - 250pcs | xUmp.com | $5.99 |
| 16708 | Solar-Powered Edison Action Figure | Kikkerland | $19.99 |
| 14787 | Solderless Electronics Starter Set | Velleman | $26.99 |
| 15155 | Solenoid / Electromagnet with Iron Core | xUmp.com | $44.99 |
| 16609 | Space Mission Sand Box | xUmp.com | $25.00 |
| 10450 | Space Wonder Gyroscope | Tedco | $9.99 |
| 15309 | Spare Gold Leaves - Pack of 6 | xUmp.com | $6.99 |
| 16781 | Spare Golden Curls for Pro Solder Tip Cleaner | Velleman | $3.59 |
| 15158 | Spark Timer Accelerator | xUmp.com | $34.99 |
| 13984 | Specific Gravity Set | xUmp.com | $10.99 |
| 16539 | Spider - Small Specimen | Real Insect | $3.99 |
| 12662 | Spider Specimen | Real Insect | $8.99 |
| 16349 | Standalone USB Temperature Data Logger | xUmp.com | $29.00 |
| 11201 | Star Mica - Bulk Mineral | Geocentral | $1.99 |
| 14589 | Star-Ball Magnetic Puzzle | Creative Whack | $34.00 |
| 11252 | Stars and Constellations Placemat | xUmp.com | $2.99 |
| 16212 | Start to Solder Educational Kit | Velleman | $44.99 |
| 15346 | Steam Generator | xUmp.com | $29.99 |
| 14821 | Steel Balls - Pack of 100 | xUmp.com | $4.99 |
| 16572 | Stir Bar for Magnetic Stirrer | xUmp.com | $3.99 |
| 16458 | Stranded Project Wire Set - 24AWG 10-Colors 60m | Velleman | $13.99 |
| 16362 | Streak Plates Class Pack - 40 White + 40 Black | xUmp.com | $99.00 |
| 16740 | Stringless Pendulum | | $44.99 |
| 16557 | Structural Engineering: Bridges & Skyscrapers | Thames & Kosmos | $49.00 |
| 14792 | Student Electronics BreadBoard | xUmp.com | $7.99 |
| 12343 | Subtraction Tables Placemat | xUmp.com | $2.50 |
| 14669 | Subwoofer Speaker | xUmp.com | $29.95 |
| 16402 | Sulfur - Bulk Mineral | xUmp.com | $1.49 |
| 13863 | Sun Art Paper - 8 x 10 | Tedco | $12.00 |
| 15376 | Sun Spot - Solar Oven | xUmp.com | $59.00 |
| 15880 | Super Capacitor - 100F 2.7V | xUmp.com | $3.99 |
| 10391 | Super Science Magnet Kit | Dowling Magnets | $27.99 |
| 15834 | Super Solar Recycler | OWI | $18.00 |
| 12125 | Super Stacking Tops | Toysmith | $9.00 |
| 14138 | Support Ring and Clamp - 4 inch | xUmp.com | $6.49 |
| 14139 | Support Stand with Rod | xUmp.com | $16.99 |
| 16821 | Swat Survival Kit in Waterproof Case | | $18.50 |
| 15729 | Switch Pitch | Hoberman | $7.99 |
| 16564 | Switching Power Supply - 3V to 12V | Velleman | $19.99 |
| 14854 | Swivel Clamp Holder | xUmp.com | $10.99 |
| 15833 | T4 Transforming Solar Robot | OWI | $18.00 |
| 16403 | Talc - Bulk Mineral | xUmp.com | $1.49 |
| 12249 | Tape Measure Keychain | Toysmith | $2.59 |
| 16606 | Tarantula and Black Scorpion - Real Specimens | Real Insect | $19.99 |
| 12665 | Tarantula Specimen | Real Insect | $24.99 |
| 15555 | Tedco 12 inch Inflatable Globe | Tedco | $7.99 |
| 13862 | Tedco Light Crystal Prism | Tedco | $8.95 |
| 16165 | Tektite - Rough Specimen | xUmp.com | $1.69 |
| 10207 | Telephone Bug Kit - Solder Electronics Kit | Elenco | $8.00 |
| 14798 | Temperature Controlled Soldering Station | Elenco | $29.99 |
| 14143 | Test Tube Brush | xUmp.com | $1.39 |
| 11223 | Test Tube Clamp | xUmp.com | $1.79 |
| 16790 | Test Tube Peg Rack | xUmp.com | $11.95 |
| 10765 | The Amazing Dinosaur Plant | DuneCraft | $5.00 |
| 16703 | The Big Engineering Makerspace Kit | Thames & Kosmos | $85.00 |
| 16849 | The Chemistry Laboratory - Educational Kit | Clementoni | $49.00 |
| 10091 | The Original Gyroscope | Tedco | $8.99 |
| 15449 | The Original Hoberman Sphere | Hoberman | $37.00 |
| 12938 | The Original Superball | xUmp.com | $2.49 |
| 16469 | The Swinging Sticks | xUmp.com | $99.00 |
| 13735 | Thermochromic Glux | Copernicus Toys | $6.99 |
| 10179 | Thermodynamic Drinking Bird | xUmp.com | $6.95 |
| 10216 | Thermodynamic Hand Boiler | xUmp.com | $6.99 |
| 14618 | Thermoelectric Generator | xUmp.com | $36.95 |
| 15357 | Thermometer Clamp | xUmp.com | $5.99 |
| 16171 | Tin Can Edge Detector Robot 4M Kit | 4M | $17.00 |
| 12259 | Tin Can Robot 4M Kit | 4M | $15.00 |
| 16877 | Titanium Metal Cube - 10mm 99.95% Pure | xUmp.com | $7.95 |
| 16558 | TKx400i Dual-LED Microscope | Thames & Kosmos | $75.00 |
| 16491 | Toggle Switch with Wire Leads | xUmp.com | $1.99 |
| 13149 | Tongue Depressors | xUmp.com | $7.99 |
| 14228 | Tornado Demonstration Model | xUmp.com | $299.00 |
| 16341 | Touch Board Starter Kit | xUmp.com | $295.00 |
| 10704 | Touchable Bubbles | Toysmith | $2.29 |
| 15808 | Traveling Science Gift Set | xUmp.com | $25.00 |
| 16169 | T-Rex Dinosaur DNA 4M Kit | 4M | $10.00 |
| 16634 | T-Rex Dinosaur Skull Excavation Dig Activity Kit | xUmp.com | $3.99 |
| 13671 | Trictenotomid Beetle | Real Insect | $14.99 |
| 12599 | Triops Eggs | xUmp.com | $6.49 |
| 11105 | Triple Pulley | xUmp.com | $2.99 |
| 14046 | Triple Tandem Pulley | xUmp.com | $2.99 |
| 15244 | Tripod Periodic Table Lamp | xUmp.com | $34.99 |
| 16616 | TroneX 288+ Science Center | xUmp.com | $57.00 |
| 13703 | Tubular Spring Scale - Blue 250g | xUmp.com | $4.39 |
| 13705 | Tubular Spring Scale - Brown 1000g | xUmp.com | $4.39 |
| 13704 | Tubular Spring Scale - Green 500g | xUmp.com | $4.39 |
| 13706 | Tubular Spring Scale - Red 2000g | xUmp.com | $4.39 |
| 16455 | Tubular Spring Scale - White 3000g | xUmp.com | $4.39 |
| 15849 | Tubular Spring Scale - Yellow 5000g | xUmp.com | $4.39 |
| 16498 | Tumble Wonder | Play Visions | $5.00 |
| 11567 | TV Rock - Ulexite | Copernicus Toys | $5.99 |
| 16654 | TV Stone - Satin Spar Selenite | xUmp.com | $2.49 |
| 16209 | Two Legged ALLBOT - Arduino Robot Kit | Velleman | $79.00 |
| 13973 | Two Potato Powered Clock | xUmp.com | $16.95 |
| 13986 | Two Way Burner Stand | xUmp.com | $4.99 |
| 10930 | Ultimate Chemistry Set CHEM C3000 v2.0 | Thames & Kosmos | $229.00 |
| 15952 | Ultra Glow Air Power Soccer Disc | Can You Imagine | $18.00 |
| 16417 | Ultrabright COB Keychain Light | xUmp.com | $3.59 |
| 12237 | Ultraviolet Touchable Bubbles | Toysmith | $3.49 |
| 15658 | United States ScrunchMap | xUmp.com | $8.99 |
| 16530 | Universal Multi Test Tube Rack | xUmp.com | $19.99 |
| 16315 | US Treasure Mining | xUmp.com | $11.50 |
| 16697 | USA/World Dry Erase Lap Board | xUmp.com | $8.00 |
| 13510 | USB Interface for Robotic Arm EDGE | OWI | $39.00 |
| 16088 | USB Temperature Sensor with Probe - PCSensor TEMPer2 | xUmp.com | $29.99 |
| 16688 | USB to Alligator Clips Connection Wire 5V - 50cm - 20inch | xUmp.com | $3.99 |
| 16359 | UV Blacklight Spotlight | Fortune Products | $45.00 |
| 16083 | UV Light Blacklight Keychain | xUmp.com | $1.69 |
| 13784 | Van de Graaff Demo DVD | Winsco | $18.00 |
| 16925 | Van De Graaff Generator - up to 250kV | | $239.00 |
| 16420 | Vanadinite - Large Chunk (2-3 inch) | xUmp.com | $8.99 |
| 16919 | Variable Inertia Set - pack of 2 discs | | $14.99 |
| 16453 | Vibration DC Motor + AA Battery Holder w/Switch | xUmp.com | $2.99 |
| 16441 | Vibration DC Motor 130 - 1.5-6V with leads | xUmp.com | $1.89 |
| 16780 | Volcano Crystal Growing Kit | Copernicus Toys | $7.95 |
| 15741 | Volcanoes and Earthquakes Playing Cards | xUmp.com | $5.95 |
| 14073 | Voltaic Cell with Porous Cup and Electrodes Set | xUmp.com | $33.99 |
| 16850 | Voltaic Pile - Educational Kit | Clementoni | $12.00 |
| 14834 | Vortex Bottle Connector for Tornado in a Bottle - Single | xUmp.com | $1.79 |
| 13710 | Vortex Bottle Connector for Tornado in a Bottle Classroom Set of 20 | xUmp.com | $32.00 |
| 12657 | Walking Stick Specimen | Real Insect | $14.99 |
| 16737 | Wash Bottle LDPE 500ml Unitary | xUmp.com | $3.99 |
| 15974 | Wasp - Small Specimen | Real Insect | $3.99 |
| 14153 | Watch Glass - 65mm - Chemistry Glassware | xUmp.com | $0.99 |
| 15620 | Water Beads | xUmp.com | $1.49 |
| 15671 | Water Clock | xUmp.com | $15.99 |
| 13845 | Water Wheel Timer | xUmp.com | $4.00 |
| 16910 | Wave Wires Magnet Station Kit | | $49.95 |
| 14860 | Wax Dissecting Pan | xUmp.com | $14.99 |
| 15677 | Wheel and Axle | xUmp.com | $9.99 |
| 14233 | White Streak Plates - set of 10 | xUmp.com | $19.99 |
| 11741 | Wicked Wings Slide Set | C & A Scientific | $9.99 |
| 13889 | Wide Range pH Test Paper | xUmp.com | $2.19 |
| 16114 | Widefield DIN 10X Microscope Eyepiece | xUmp.com | $33.00 |
| 16473 | Wilderness Survival Cards 4-pack Set | xUmp.com | $24.99 |
| 12701 | Wilderness Survival Playing Cards | xUmp.com | $6.99 |
| 10887 | Wimshurst Lightning Machine | xUmp.com | $75.00 |
| 13916 | Wind Power Kit v2.0 | Thames & Kosmos | $49.99 |
| 16938 | Wind Turbine Demo Apparatus | | $39.95 |
| 12260 | Windmill Generator 4M Kit | 4M | $12.00 |
| 13773 | Winsco Van de Graaff Generator | Winsco | $749.00 |
| 14666 | Wire Cutter and Stripper Tool | xUmp.com | $3.99 |
| 16800 | Wire Cutting and Adjustable Stripping Pliers | xUmp.com | $5.95 |
| 14140 | Wire Gauze 5 x 5 inches | xUmp.com | $1.29 |
| 15603 | Wire Stripper Tool | xUmp.com | $5.99 |
| 15528 | Wood Fidget Puzzle | Toysmith | $2.99 |
| 14396 | Wood Grain Newtons Cradle | xUmp.com | $17.99 |
| 10798 | Wooden Boomerang | xUmp.com | $4.99 |
| 16824 | Wooden Tangram Puzzle | | $1.49 |
| 13247 | Wooden Test Tube Rack | xUmp.com | $4.99 |
| 10849 | Woodpecker | xUmp.com | $3.95 |
| 11376 | World and U.S. Map Chart | BarCharts | $4.99 |
| 16286 | World Map Wall Clock | xUmp.com | $13.50 |
| 14971 | World's Simplest Motor | Tedco | $8.99 |
| 10144 | Worlds Strongest Magnets | Dowling Magnets | $12.00 |
| 13469 | X-Ball - Magnetic Puzzle | Creative Whack | $29.00 |
| 14248 | Xenon Spectrum Discharge Tube | xUmp.com | $19.99 |
| 14177 | xUmp Gift Bag | xUmp.com | $1.99 |
| 14588 | Y-Ball Magnetic Puzzle | Creative Whack | $29.99 |
| 16446 | Yellow Hand Tally Counter | xUmp.com | $3.39 |
| 16477 | Yellow LED Bulb - 2.3V - with wire leads | xUmp.com | $0.59 |
| 16879 | Zinc Metal Cube - 10mm 99.95% Pure | xUmp.com | $9.95 |
