It's Magic!

How do things glow in the dark?

You might think it's magic, but it's just science! This type of science is called luminescence. It requires chemicals that store energy when exposed to light. These are called phosphors, or also called phosphorescence. You have to expose these type of chemicals to light before they can work because the chemicals have to charge in the sunlight before they can glow in the dark.

My Opinion

I think that the science behind glow in the dark items is awesome. According to Wonderopolis, " these glow in the dark items need to be in light before they can work because they have special chemicals that store energy in them when in light."