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Blood Typing Kit
New
-33%
Out stock

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+/-...

$15.50$10.50
Green Uranium Glass Ball
New
Out stock

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. ...

$7.00
Apollo 11 50th Anniversary Patch
New
-34%
Out stock

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

$7.50$5.00
Gallium
New
Out stock

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...

$12.50
PYREX Glass Beaker
New
Out stock

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.

$7.00
Tube of 20 Neodymium Magnets
New
Out stock

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...

$5.00
NASA Mission Control Computer Chip
New
Out stock

During the 1970s–80s, NASA used state-of-the-art computers from the company Modular Computer Systems. These "MODCOMP" systems were used in processing and controlling the telemetry of many space projects including the Voyager probes, Skylab, as well as the early Space Shuttle launches. ...

$17.95
Aerogel
New
Out stock

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...

$16.00
PYREX Erlenmeyer Flask
New
Out stock

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...

$9.00
Voyager Golden Record Cover Pin
New
Out stock

Be a Voyager, exploring of the universe, while wearing this 1.25" version of the plaque on the Voyager spacecrafts.   What the symbols mean: In the upper left-hand corner is a drawing of the phonograph record and the stylus carried with...

$10.00
Unbroken Geode
New
-38%
Out stock

These 2-3" geodes come unbroken so you can smash them open yourself. You'll be the first person to ever see the crystals hidden inside. Most contain quartz crystals, but there's a small chance you could get another type of crystal....

$8.00$5.00
Trilobite Fossil
New
Out stock

Species:  FlexicalymeneEra: Ordovician (500–425 million years ago)Location: MoroccoThese photos are representative of our current inventory. You may not receive these exact specimens. We prioritize sending the biggest specimens first.  

$11.00
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