American Museum of Natural History
Bio-Benefits
Kick-start a discussion of the importance of biodiversity with a colorful resource that touts the benefits of maintaining healthy ecosystems. The images stress the interdependence of all the elements of an ecosystem.
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Space Science Institute: Alien Earths: Search for Life
How do you recognize life on another planet? What tests do scientists use to determine if something is a life form when they are many light years away from being able to observe it directly? Try your hand at interactives to create a...