The Internet is a vast and fascinating place to be, but you have to know how to get there first! Use a helpful guide to become computer savvy in no time. It covers computer basics such as keyboarding and hardware, and goes into e-mail,...

NASA's LCROSS mission is dropping a probe into a lunar crater. Groups design a system to travel down a zip line and drop a marble onto a target in the classroom. The groups then modify their designs based upon testing.