|
Products
|
| Actually Change Color When Exposed to Sunlight |
|
Design and conduct engaging experiments that test the effectiveness of UV protection with these innovative UV sensitive beads. This set of Ultraviolet Beads “glow” with bright colors when exposed to the sun or other UV light sources, but remain off-white when indoors and in the absence of UV rays. Using student provided sunglasses, sun-block, and automobile glass for examples, you can reveal how much protection these items truly offer from UV light. Reusable, the beads will cycle back and forth 50,000 times for long term use. Package contains approximately 240 UV beads in assorted colors.
Tell a Friend about this item
|
|
|
