15.1 Energy and Its Forms
15.2 Energy Conversion and Conservation
15.3 Energy Resources
How Can Energy Change Form?
Procedure
Examine a flashlight, a solar calculator, and a wind-up toy. Determine how each object operates.
Record the name of each object, the source of the energy that it requires, and the kind of energy it produces. For example, does the object require or produce electricity or light?
Think About It
Classifying What was the source of energy for each object?
Inferring What form of energy did each object produce?
Drawing Conclusions How did energy change form in each object? For example, did any of the objects convert light into another form of energy?