This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Using a toy race car kids create a visual model of the Doppler Effect.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.