Downloadable (1 PDF - 6 pages)
Through observing the collection of gas produced by pond weed submerged in water, students will witness the production of a gas from photosynthesis. The ability of the gas to support a flame will then be tested to determine if it is oxygen. This lesson is ideal for grades 3-5.
After completing this experiment, students will understand:
- That photosynthesis produces oxygen
Resources included:
- Lesson plan
- Student worksheet
Additional resources required:
- Glass jar (1 per group of 3-5 students)
- Pond weed (also known as Elodea, available at pet stores) (1 per group)
- Funnel that fits entirely inside the jar (1 per group)
- Test tube (1 per group)
- Large plastic container or bucket (1 per group)
- Matches and a wooden splint (for demonstration purposes only)
