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
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
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
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
This laser beam set creates your own laser hallway, light show, or obstacle course. Experiment with this high-powered laser and lab-grade mirrors. Kit Includes: One Class IIIB Green Laser plus Charging Cable; Eight Precision Optical Mirrors plus Supports; One Diffuser Lens for light show. NC-14628
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
This plastic, translucent blue 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-14629
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
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
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 chemical known as super absorbent polymer (or SAP). Ages 8+. NC-13815
