Light Sticks - Cool Halloween Science

The light sticks that trick-or-treaters carry at Halloween glow by the process of chemiluminescence, a chemical reaction in which electrons jump to a higher energy level. In this video, the variable of temperature is introduced to find out if it affects the intensity of light or length of reaction. You can use this in a chemistry class, or even with younger learners to help explain what a variable is for their science projects.

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