Products

Don't know your blood type? Find out in minutes with this sterile blood type testing kit. Includes everything you need to take the test at home. Nothing needs to be sent to a lab. Tests for A+/-, B+/-, AB+/-, and O+/-...

In the past, glass manufacturers added uranium to glass for color. Uranium has since become more strictly regulated, but the old uranium glass objects are still floating around. Because of the uranium content, these marbles glow bright green under ultraviolet light. ...

Special edition 3.5" iron-on NASA mission patch for the Apollo 11 moon landing. Free shipping. 

Gallium is a metal with a very low melting point. In fact it will melt in your hand after a few minutes. Once it is liquified, it is an interestingly dense liquid, similar to mercury (except gallium is non-toxic!) This...

Corning Pyrex® Glass Beakers are designed with uniform wall thickness. Borosilicate 3.3 glass provides the proper balance between mechanical strength and thermal shock resistance. The highest quality control in the industry means you'll get the most precise measurements possible.

Ferrofluid is an iron-based liquid that reacts in the presence of a magnetic field.  Comprised of nano-scale magnetic particles suspended in a transparent liquid, ferrofluid aligns itself to a magnetic field, making it easy to visualize the field. With this amazing magnetic...

Our mighty 4mm cubic rare earth magnets are incredibly useful, mesmerizing to fiddle with, and a steal for only 5 bucks for a tube of 20. We had these custom manufactured to the highest magnetization the factory could concentrate into...

DONATE A KIT TO HELP MAKE SCIENCE MORE ACCESSIBLE Want to help get these tools of discovery into the hands of kids who can't afford them? We'll be donating as many kits as we can, and you can help us...

A challenging puzzle that makes a nice display piece once finished.  Improve concentration, problem solving, and fine motor skills. No tools or glue needed. Simply push out the laser-cut wood pieces and assemble according to the diagrams included inside. Each...

Aerogel is one of the most impressive materials humans have created...so far. This vial contains 25mL (approximately 1 heaping handful) of silica aerogel particles—the world's lightest known solid material. Commonly called "frozen smoke", it is safe to touch, hydrophobic (repels...

PYREX Erlenmeyer flasks are designed with heavy duty rims to reduce chipping. Their uniform wall thickness provides the proper balance between mechanical strength and thermal shock resistance. Approximate graduations are in durable white enamel. An extra large marking space is...