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Bulk Packs

Mini Lightbulbs - 1.5-3V E10 - Pack of 10

Great for electrical science projects!

Item#: 11108 Age: 8+
5 star rating (4 customer reviews)

Periodic Table Reference Cards - 10 pack

Great reference card for chemistry and physics students.

Item#: 15097 Age: 12+
5 star rating (9 customer reviews)

Plain Microscope Slides - Pack of 72

The Blank Microscope Slide Set includes a massive quantity of 72 plain glass slides.

Item#: 10873 Age: 13+
5 star rating (1 customer reviews)

Rattleback - Multicolor Pack of 10

Get 10 of the simplest and coolest physics toys out there in one set!

Item#: 14486 Age: 8+
5 star rating (16 customer reviews)

Mini Liquid Compass - Pack of 10

A set of 10 miniature liquid-filled compasses, excellent for science experiments involving magnets

Item#: 16309 Age: 6+
5 star rating (6 customer reviews)

Plastic Forceps - Pack of 10

Excellent plastic forceps for use in the classroom!

Item#: 13608 Age: 10+
5 star rating (2 customer reviews)

10 pack Mini DC Motors - 1.5-6V

This pack of 10 reliable and affordable 1.5 to 6V DC motors with wire leads is perfect for hobby electronics projects, as well as science fairs, and for use in the classroom

Item#: 16260 Age: 14+

Mini E10 Bulb Socket with Terminals - Pack of 10

Most affordable mini-light bulb holders. Great for classroom use!

Item#: 15848 Age: 14+

10 pack Buzzers with Leads - 1.5V

Save with this pack of 10 buzzers. 1.5 Volts DC 400Hz. Great for Morse code circuits.

Item#: 16239 Age: 14+
5 star rating (3 customer reviews)

Alligator Cords - 2ft - pack of 6

This set of six 2 ft long connection cables with alligator clips on both ends is great for science projects!

Item#: 14484 Age: 13+
5 star rating (1 customer reviews)

Plain Microscope Slides - Pack of 12

Use these slides for science experiments, lab work and more!

Item#: 13603 Age: 10+

PH Meter Calibration Buffer Powder - 10 pack

A set of 10 pH Buffer Powder packets. Includes 5 pH 4.00 packets and 5 pH 6.86 packets.

Item#: 16307 Age: 18+
5 star rating (2 customer reviews)

Liquid Crystal Thermometer Stickers - 5 pack

Peel and stick on glass, plastic and metal surfaces for a visual indication of temperature changes.

Item#: 15589 Age: 8+
4.5 star rating (2 customer reviews)

Disposable Scalpels - pack of 10

These scalpels are necessary to have on hand for your next lab dissection!

Item#: 13151 Age: 13+
5 star rating (1 customer reviews)

CR2032 Lithium Cell Batteries - 9 pack

A blister pack of 9 3V CR2032 Lithium Cell Batteries, usually used for remote controls, but, more frequently, computer motherboards.

Item#: 15992 Age: 18+

100 Assorted LEDs Pack - 5mm

This pack includes 100 assorted 5mm LEDs. There are 20 of green, red, yellow, blue and white.

Item#: 16259 Age: 14+

Alligator Cords - 10 pack - 2ft Red/Black Set

This set of ten (5 black, 5 red) 2 ft long connection cables with alligator clips on both ends is great for science projects!

Item#: 16394 Age: 13+

Plastic Petri Dishes - 85mm - pack of 20

Set of 20 plastic petri dishes, each with a diameter of 85mm (3.35 inch) -- affordable bulk classroom and laboratory supplies

Item#: 16250 Age: 9+

Mini Knife Switch - 10 pack

A set of 10 mini knife switches that can be used to connect or break circuits

Item#: 15895 Age: 13+
5 star rating (3 customer reviews)

Measuring Tape - 10 pack - 60inch 150cm

A set of 10 cloth measuring tapes, each measuring up to 60in/150cm

Item#: 16121 Age: 8+

Acrylic Color Filters - pack of 5

Durable color filters for performance of optical experiments

Item#: 15347 Age: 8+

AG-13 Alkaline Batteries - 20 pack

A 20-pack of AG-13 Alkaline Batteries, ideal for watches, clocks, calculators, electronics, cameras, LED tools, and more

Item#: 15993 Age: 18+

Glass Plates - 10 pack

10 glass streak plates ideal for testing the hardness of minerals

Item#: 15696 Age: 9+

10-pack Desoldering Wick - 10 x 5ft

A helpful pack of 10 desoldering wicks to use during your next soldering project!

Item#: 16032 Age: 13+

Streak Plates Class Pack - 40 White + 40 Black

A set of 40 black and 40 white streak plates! This classroom set allows you to test the hardness and streak color of a huge variety of specimens!

Item#: 16362 Age: 14+

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xUmp.com Catalog

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At xUmp.com, we are passionate about science. We believe in hands-on learning and making science fun. - Anton Skorucak, Physicist and Founder

At xUmp.com you will find a large selection of scientific products carefully curated by real scientists and educators. We sell everything from educational toys, teacher supplies for science classroom, lab equipment, science toys, science fair supplies, classroom equipment, chemistry glassware, chemistry lab equipment, physics demos, electronics supplies, robots, science kits to geeky science gifts.