Throughout history, humans have developed several simple machines to make work easier. The most notable of these are known as the "six simple machines": the wheel and axle, the lever, the inclined ...

Introduction: This lesson provides students with a review of simple machines and their tasks. It works best in combination with your lesson on simple machines, or as a review/additional activity.

Find out how simple machines impact your daily life on this Science Trek: The Web Show. In this Science Trek: The Web Show, Host Joan Cartan-Hansen and her guest scientists John Gardner, Boise State ...