Plankton: so much more than just a SpongeBob character. Three different activities have kids looking at both phytoplankton and zooplankton in pictures, as well as collecting their own samples (depending on your access to a saltwater...

Expectant earth scientists examine the bottom side of a leaf and learn the role of the stomata. They consider the gas exchange that occurs through these structures and relate how the climate is changing to its impact on food crops. This...

Ready to cell-ebrate all things cells? Bring a lesson plan that covers prokaryotic, eukaryotic, plant, and animal cells to your biology class. Pupils pair up and research organelles, use computers to create tables and presentations,...