Students will observe the production of oxygen by a plant by submerging a leaf underwater and observing oxygen bubbles form. In part 2, students will conduct a small experiment to see if the amount of light a plant receives affects the production of oxygen by plants. This experiment can be kept very simple for younger students to observe that plants produce oxygen or can be used as an exploration of photosynthesis for older students. Students can expand on their understanding of photosynthesis. 

This is a publicly available resource developed by the Little Green Thumbs program, a classroom gardening program. Learn more about the Little Green Thumbs program in your region.