Students determine the refractive index of a liquid with a simple technique using a semi-circular hollow block. Then they predict the refractive index of a material (a Pyrex glass tube) by matching it with the known refractive index of a...

Objects that glow in the dark hold a special place in the imagination of both children and adults. The lights go out at night, but these odd things refuse to disappear. Where does the light come from? Do they work in any climate? In this...

Build your own windmill and see how the wind can be converted into energy to produce electricity. This science fair project should help you understand the use of wind as a source of alternative energy. The Science Buddies project ideas...

Step-by-step instructions, with photos, of how to construct and test a wind turbine that produces energy. This experiment does require preparation as it uses PVC pipes, a small motor, and a multimeter, for example.

Explains how a dry cell battery works, the chemical reactions that take place in it, how to use a multimeter to test its strength, what dry cell batteries are used for, their advantages, and about recycling. [The article suggests placing...

Frankenstein's electricity is out. In this activity, students help him find another source of energy using citrus fruit. Good for students who want to do their own projects or for class lessons.

This investigation has students examining how electric and magnetic charges are related. They will look at how an electric current is affected by the proximity of a magnet.

A discussion of various principles related to voltage. The operation of battery testers and voltmeters are explained. The importance of the internal resistance of a power source is discussed.