Each group needs:

• lamp
• incandescent 60 W bulb (not a halogen lamp)
• aluminum foil, ~12 x 12 inch piece
• clean transparencies
• Light Attenuation Scale; individually print this light intensity scale because it loses the grayscale detail when photocopied
• masking tape, ~12 inches
• scissors
• access to Microsoft Excel® computer software or a graphing calculator
• Light Experiment Worksheet