Young scientists explore the animal kingdom from the safety of the classroom with this short research project. After first choosing an animal, children use the Internet to discover where it lives, what it eats, and how it...

The London Bridge should not have fallen down. And here's why. After a brief history of bridges and the three main types, class members are introduce to the concepts of tension and compression, the two main forces acting upon bridges. 

Official website for Mammoth Cave offers a wealth of information for curious about the history, culture, and science of this cave system. Contains photos and multimedia presentations, stories about the primitive miner, explorers, and...