MSNBC has an interactive gadget on their site: Before and After Humans.
Here’s a great cartoon about skepticism.
Molecular Workbench: “offers interactive, visual simulations and activities that have been widely used in science teaching for students of all ages. Our database is designed to provide teachers and students with easy access to our model-based activities. The activities are derived largely, but not entirely, from projects of the Concord Consortium sponsored by the National Science Foundation (NSF). The models are primarily of interactions of atoms and molecules, or rule-based genetics.”
