What evidence is there that a glowstick works as a result of a chemical change?

Answer 1

You may have wondered what happens when you snap a glow stick to activate it; by doing this, you're actually kicking off a chemical process that eventually leads to the production of the coloured light. Glow sticks actually contain two separate compartments, with two different chemical solutions. On a final note, glow stick reactions, like many chemical processes, can be influenced by temperature. Warmer temperatures will accelerate the rate of reaction, whilst cooler temperatures will decrease it. Want to make your glow sticks last longer? Stick them in the freezer!

Answer 2

When a glowstick is activated, a chemical reaction occurs between the chemicals inside the stick. This reaction releases energy in the form of light, known as chemiluminescence. The chemical change involves the breaking and forming of bonds within the molecules, resulting in the production of light.