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I. TEACHER NOTES & GUIDELINES

TITLE OF LAB: WAVELENGTHS OF LIGHT ABSORBED BY PLANT PIGMENTS

DEVELOPERS OF LAB: Mike Abrahamson JD550, James Clinton JD865, Jeanne Ditton JD875, Tom Kelly JD528, David Kibler JD850, Janice Martin JD561, Jim Prockup JD575

OVERVIEW OF LAB

DESCRIPTION:
The absorption spectrum of light by chlorophyll will be measured by a spectrophotometer (20D+). A post-lab component will then follow to analyze the results. To evaluate the students understanding of the lab they will be required to make a presentation on which color(s) of light would be best absorbed by chlorophyll and defend their choice. The students will then design experiments to explore absorption spectrum of different plant pigments.

CURRICULUM CONSIDERATIONS:
This laboratory can be used with General, Regents, and AP Biology classes. It can be used prior to photosynthesis or in discussions of energy.

SAFETY CONSIDERATIONS:
There are no dangerous chemicals used in this lab. Students should be careful when handling glassware and electrical equipment.

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