Obsidian is a rock which is a type of naturally occurring glass produced by volcanoes. It lacks crystal structure, which can make it have extremely thin edges. This is the reason why obsidian was often used as arrowheads in a variety of ancient cultures. You can have your very own arrowhead to show to your friends! A great collectible item for the Native American art collector!
Please be aware that this is a natural mineral and as such each piece is one of a kind! The one you receive may not be exactly the same as the ones pictured but it will be similar. Price is per each piece. They come in irregular shapes, sizes and weights.
Save with this large package of 300 medium-size nitrile exam gloves!
These disposable face shields are popular with health professionals, dentists, EMTs, etc. They act as a full-face barrier protection against body fluids.
These ear plugs are made of self adjusting foam that provides a comfortable, low pressure fit and excellent sound filtration.
These goggles meet the American National Standards Institution (ANSI Z87.1) and Canadian Standards (CSA Z94.3) regulations.
These disposable surgical-style earloop face masks conform to the ASTM F1862 Level 1 clasification. Box of 50.
Box of 100 X-SMALL nitrile exam gloves.
Infiniview comes with a 3.5" LCD screen and rechargeable Lithium Ion battery that will last up to 2 hours in the field.
This is a great clean heat demonstration model for the classroom setting!
Great reference card for chemistry and physics students.
Ever wonder how to survive in the wilderness? These cards can help!
A beautiful desk or bookshelf accessory for the reading fanatic in your family!
A touch of joy. A touch of science. Light responds to your touch and to the music in your room!
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.