What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.

Kids learn how fiber optics work with a dramatic total internal reflection experiment using a fish tank, water, and a laser pointer.

In this fun science fair project idea learn the difference between additive and subtractive color and why they are handled differently.

Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

Learn the chemistry and physics of the brain, how our nervous system work. Demonstrate that the brain is an electrical and chemical machine.