Who said "candy science" is a contradiction? As kids are using the UV flashlight with the glowing gummies they made, they'll also be learning the physics of light! Chemistry lessons are mixed in as you mold glowing gummies, hard candies and groovy ice cubes with tropical flavors, sugar and gelatin. There is a small amount of a completely natural ingredient in them that makes the candies glow under a UV light. Learn about the science of these amazing treats in the experiment manual. Requires 1 AAA battery, not included.