This is a thermal energy experiment to determine if the temperature of water affects the luminance of a glow stick. This lesson takes around 45 minutes.

Through this lesson, the students will learn that hot water makes a glow stick glow brighter than cold water. The students need to have some background knowledge of the movement of particles of a liquid.

This product is editable so that you can use it with items you have in your classroom. For example, if you would rather use graduated cylinders rather than beakers, this can easily be changed on the lab sheet!

This product includes a detailed lesson outline for easy implementation, a materials list, and how to set up for this lab.

Materials needed to complete this lesson:

• Glow sticks (2 per group of 4)
• Large amount of hot water
• Large amount of cold water
• Beakers that can hold 500mL of water
• Thermometers