In this segment from The World’s Most Exciting Classroom Episode 3, Stewart McPherson gives a (greatly simplified) explanation of how animals adapt on islands, using the examples of the Komodo dragons of island gigantism and Brookesia chameleons as island dwarfism.

In this segment from The World’s Most Exciting Classroom, we find out the results to the Growing Cress Seeds Experiment introduced in Episode 16.

In this segment from The World’s Most Exciting Classroom, we find out the results to the Baking Soda Crystals Experiment.