Safety Precautions Handle thermometers with care. Discuss and find that energy from the sun is great because it does not pollute. Share the fact that most energy we use is fossil-related and costs a lot to harvest, can destroy the earth during harvesting, and is limited or exhaustible. Solar energy is limited only by cloud cover and the earth's rotation. Today, we will begin an experiment to see what materials store and absorb sunlight.
Activity Have students get in pairs or small groups.
Students put a strip of masking tape on each can. Fill up each can with its own material. Place cans inside the box. Put a thermometer in each can. Put the top on the box.