Suggested Reading: Lighting
Activity One: Light Bulb Investigations
Objective
Students will understand the differences between incandescent and CFL light bulbs.
Time
One class period
Materials for Each Investigation
-2 Lamps
-1 Incandescent bulb
-1 Compact Fluorescent light bulb
Materials for Investigation 1
-2 Thermometers
-Tape
-Light Bulb Investigation 1 worksheet
Materials for Investigation 2
-1 Kill A Watt monitor
-Light Bulb Investigation 2 worksheet
Materials for Investigation 3
-1 Light meter
-Light Bulb Investigation 3 worksheet
Note: Make sure that the incandescent and CFL bulbs have as close to the same lumen ratings as possible.
Procedure
- Divide your class into three groups.
- Assign each group one of the light bulb investigations. Have students follow the procedures on the student worksheets.
- Discuss results as a class.
Activity Two: Facts of Light
Objective
Students will compare and contrast the financial and environmental impact of their lighting choices.
Time
One class period
Materials
- Facts of Light worksheet
Procedure
- Review the findings from the Light Bulb Investigations. Based on their findings, how do students believe the cost of bulbs is affected?