Some sources for class and beyond:
- It’s 1634, and your name is Jan Baptist van Helmont
- Reading and exploration sheets on Joseph Priestley, Discoverer of Oxygen, from the American Chemical Society
- How does a plant get energy? Exploration "leaves" created by teacher Molly Weinburgh
- Chemical equation for photosynthesis interactive, from New Path Learning
- Photosynthesis revision and test bite from BBC Learning
- All about PLANTS—great information, don't be put off by the site's title (Biology4Kids)