Group students in pairs or quads, depending on the amount of available equipment. Variables can be assigned, selected, or completed by all groups over multiple sessions. If each group is using a different set of variables, then the group will report findings to the class. Alternatively, the experiments can be turned into stations, with each group responsible for creating the instructions for the station experiment.
Suggested variables for student designed experiments using solar cells are:
- Parallel circuit
- Series circuit
- Operating temperature
- Light angle
- Intensity of light
- Frequency of light
