UV beads absorb ultraviolet light. UV radiation is electro- magnetic radiation with a wavelength just shorter than that of visible light. The beads then release the energy of the UV light at a wavelength we can see. The wavelength emitted by the beads is different depending on the dye, and we see this as different colors.
Many molecules absorb UV light. Some, like DNA, can be damaged by the energy in UV light. Sunscreen blocks UV light, protecting the DNA in your skin.
The UV flashlight is not dangerous for short periods of time. It emits UV A wavelengths, which cause less damage than UV B.
Mess Kits are single-serving experiments that allow kids to explore scientific concepts at their own pace. Visitors are encouraged to complete as many as they want! See all Mess Kits.