A collection of projects that recreated Isaac Newton's experiments as he would have built them in the seventeenth century. The projects include the mechanical advantage possible using three levers, the trajectory of a projectile, air...

Kids learn about the science behind simple machines such as levers, wheels, pulleys, inclined planes, and screws. How they work together to make complex machinery.

In this Cyberchase video segment, the CyberSquad finds the right combination of switch, lever and button that will deactivate the force field protecting the stolen Black Crystal. [3:21]

Piezoelectricity is an electrical effect that occurs when mechanical stress is applied to certain materials, e.g., quartz crystals, Rochelle salts, and barium titanate. The sound of a wrist watch alarm or a smoke detector is made by a...

Extensive site for teachers provides some helpful resources that pertain to plant and animal cells. Includes a microscope diagram as well as plant, animal and pond labs. Also contains links to structures and mechanisms, matter and...

A history of the earliest versions of the Winchester rifle, which found a ready market in the American West after the Civil War.