The Floating Leaf Disk Assay for Investigating Photosynthesis
This lab activity demonstrates the process of photosynthesis through the production of oxygen in a plant leaf. The activity calls for fresh spinach leaves, but other leaf types may be tried. Essentially, leaf discs are infused with bicarbonate to get them to sink. When the leaves rise due to the production of oxygen, you know photosynthesis is occuring. Regular desk lamps can be used for light sources.