The Atoms Family
Information about energy and forces, and electricity.

How Stuff Works
Take a look at the insides of many common machines, and find out how they really work.

Electricity
Static and current electricity, with quizzes to test your own knowledge. Good background information for teachers.

Simple Machines
Find out about simple machines like the pulley, lever, and screw, and how they work.

Leonardo da Vinci
Find out about this famous inventor, and see some of his plans and drawings.

Rolling On
The story of the wheel and how it has changed over time.

Student Project on Machines
A project made by students, showing how simple machines work.

History of Inventions
Look at different inventions, and see how they have changed our way of life.