Gallium, 99.99%, 50g

Gallium, 99.99%, 50g

Ultra-pure gallium has a beautiful, silvery appearance, and the solid metal exhibits a conchoidal fracture similar to glass. Gallium is silvery white and soft enough to be cut with a knife. Melting point is 29.76°C (85.57°F). NC-13960

$59.95
Silica Aerogel, 1oz.

Silica Aerogel, 1oz.

Aerogels are a group of materials in which the liquid portion of a gel has been replaced with a gas. Commonly called "frozen smoke", 99.8% of the volume is empty space within a fine silica structure. This popular item is essential for any science enthusiast's collection. NC-14625

$16.00
Super Absorbent Polymer Water Beads

Super Absorbent Polymer Water Beads

Soak in water and these spheres grow 300 times their size! After a while out of water, evaporation will dry out and shrink the spheres again. Spheres are made from a hydrogel known as super absorbent polymer (or SAP). Ages 8+. NC-14674

$2.95
Yellow Uranium Glass Ball

Yellow Uranium Glass Ball

This one inch round uranium glass ball has a yellow tint, but will glow bright green under ultraviolet light.  Makes a great sample for uranium if you're collecting the elements. NC-14632

$10.00
Ultraviolet Light Demonstration Box

Ultraviolet Light Demonstration Box

This box explores fluorescent materials — the natural illumination caused by exposure to ultraviolet light.
Box includes five items with info cards: LED Ultraviolet Flashlight, Uranium Glass Ball, Ultraviolet Ink Marker, Sumatran Amber Fossil, Calcite Crystal. NC-14632

$24.00
Nuclear Radiation Box

Nuclear Radiation Box

Everything included in this box is radioactive. Seriously. This box includes five items that are slightly radioactive including both naturally-occurring and human-made items.
Box includes five items with info cards: Uranium Glass, Nuclear Fallout Honey, Radium Watch Hand, Bismuth Crystal, and Fuchsite Crystal. NC-14676

$48.00
Beam Splitter Dichroic Glass X-Cube

Beam Splitter Dichroic Glass X-Cube

The Beam Splitter Dichroic Glass X-Cube is a one inch square glass cube made of several lab-grade glass prisms with special optical filtering coatings. Catch the light on it just right, and it fills with a vibrant rainbow of color!. NC-14651

$18.00
Plastic Rattleback

Plastic Rattleback

Spin the Rattleback clockwise and watch it stop, rattle up and down and then spin in the other direction! A science curiosity whose ancient and mysterious properties capture the attention of all ages.  NC-14685

$2.95
Plastic Rattleback, Green

Plastic Rattleback, Green

This plastic, translucent green rattleback prefers to spin in one direction due to its unique semi-ellipsoidal shape. When spun in the wrong direction, it will automatically shift the momentum until it "rattles" and spins in the opposite direction. NC-14630

$2.50
Future Proof Periodic Table of the Elements Poster, 24x36 inches

Future Proof Periodic Table of the Elements Poster, 24x36 inches

The ultimate future-proof periodic table with 118 elements, 24x36 inches size, and neutral color-scheme. Future-proof by adding blank boxes as placeholders for the predicted, undiscovered elements, and featuring atomic weight, magnetism, and more.  NC-14627

$20.00
Green Europium Glow Powder

Green Europium Glow Powder

This is a new generation of phosphorescent powder that can glow 10x brighter and 10x longer than traditional glow-in-the-dark materials. It glows bright enough to be seen in daylight, lasts up to 30 hours, and can be recharged indefinitely. NC-14673

$16.00