THE ELEMENTS

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. ...

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...

WE LAUNCHED THIS PRODUCT ON KICKSTARTER AND IT WAS FUNDED OVER 200% If you compress any amount of mass, it becomes denser. If you compress it enough, it will become so dense that light can no longer escape it—this size...

Set of 10 cubes of various materials to compare densities.    Materials come in a blue plastic case. Cubes are all 1" (25.4 mm)   Materials included: Copper (8.85 g/cc) Brass (8.4 g/cc) Steel (7.8 g/cc) Aluminum (2.7 g/cc) PVC...

½ ounce (14 g) of pure zinc metalZinc (Zn) is element 30, add this to your periodic table¾” wide x 5/16” thick hexagon

Shine a bright flashlight (like the one on your cell phone) directly onto the side of this jar of powder for a few seconds and remove it to see something amazing.  This is a new generation of phosphorescent powder that...

Radium [Ra, 88] is a radioactive element, so it isn't something you come across everyday. But decades ago, it was painted on watch hands since it naturally glows in the dark. This practice was discontinued in the 1960s, and now these...

We created our own Periodic Table of Elements, and we designed it to be the last table of elements you ever buy.⁠⁠Existing tables become inaccurate every time a new element is discovered, and labs/scientists/classrooms around the world must buy updated...

Lead is a chemical element with the symbol Pb (from the Latin plumbum) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low...

Wafers are thin sliced semiconductors used to manufacture microelectronics and computer components. This sample is an 8" uncut silicon wafer with integrated circuits. Each wafer contains thousands of duplicate photo-lithographed circuits. Typically this wafer would have been cut up and the...

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. ...