Biology

Just add sunlight and water to demonstrate a chemical reaction caused by ultraviolet light. At the same time you can create a photographic work of art! Put one or more objects on a sheet of this photosensitive paper and expose it to sunlight for seve...

These UV-detecting beads are a real attention getter-driving home the point that this invisible light is a real thing causing real changes. The hole in the ozone layer and the possible damage to living organisms by increased UV radiation has received...

Use this pocket-sized UV intensity meter to demonstrate UV principles quickly and easily. Simply expose the card to UV light for 20 seconds and the color strip will turn color in response to the intensity of the UV light. Rating of the intensity is r...