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Science & Plants for Schools (SAPS)
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Cabomba: Investigating Photosynthesis with Bubbling Pondweed
This resource describes the use of Cabomba to investigate the effect of light intensity in photosynthesis. The video demonstrates how best to use this protocol with students in the lab, supported by student sheets with four different investigations, technical notes and full teachers' notes.
The bubbles from the pondweed can be counted and the rate of bubbling can serve as an indication of the rate of photosynthesis, or the gas can be collected in a pipette or microsyringe and the amount measured. Students can investigate the effects of either light intensity or the wavelength (colour) of light on photosynthesis.
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Downloads
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Teachers' notes 5.58 MB
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Technicians' notes 5.88 MB
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Activity sheet 6.22 MB
Show downloads
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Teachers' notes 5.58 MB -
Technicians' notes 5.88 MB
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Activity sheet 6.22 MB
Download all files as a .zip6.95 MB
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