The best arts and crafts project is the one that works with the sun! Kids are amazed by how magical these beads seem when they instantly change color outdoors. Each bead has photochromic chemicals in the plastic which change color when exposed to electromagnetic radiation from the sun. This teaches kids why they need to wear protective sunscreen and sunglasses when they go outside. Make a bracelet as a fashionable reminder to apply sunscreen, melt them to make artful and scientific school projects, or weave like colors in an anklet to create a hidden message which reveals itself in the sun! Each bag comes with over one hundred beads that change into a variety of bright colors in then sun, including purple, yellow, violet and blue.
Discover how solar cells make electricity with this awesome kit!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
Provides the power to execute all the basic electrostatic demonstrations on an energetic and dramatic scale with up to 350,000 volts!
Build a model car that runs on hydrogen gas using a unique reversible fuel cell!
This illuminated orbiter is great for demonstrations in the astronomy classroom!
This high precision gyroscope will amaze you with rotational speed and ease of precision.