This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Test your friends to find out if you can replicate the placebo effect's incredible results.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.

This science fair project idea explores how length affects the weight a bridge can hold.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

This basketball project explores the best way to make the perfect shot every time.

This science fair project idea determines the operating differences of AAA, AA, C, D batteries all with a 1.5 volt rating.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

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

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

In this science project, the center of gravity is explored.

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

Examine the effect of pressure on carbonation in soda.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

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

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

The purpose of this science fair project is to build a basic radio.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

This science fair project idea determines the most effective method of preserving food.