This project compares the strength of one, two, and three-ply toilet paper.

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

In this science fair project, students make their own rain gauge to measure rainfall.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

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.

Science fair project that explore how compound motion works by examining how gravity is affected by horizontal force.

Science fair project that examines the effects of soap on the surface tension of water. How does soap affect the surface tension of water?

This experiment examines if space objects become round after reaching a certain mass.

Science fair project that demonstrates the process known as refraction, which allows glasses and contact lenses to help people with poor vision.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Science fair project that demonstrates how a rainbow forms, by using water to split white light into its many colors.

Science fair project which identifies the most effective insulator that you could use to make a winter coat by comparing how well cloth and cotton trap heat.

In this science fair project, students test how objects float and sink in liquids of different densities.

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

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

This experiment will examine and precisely measure the amount of sugar in various sodas.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

This classic children's game demonstrates how sound travels through air vs. through a solid.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

The purpose of this project is to determine if there are fluctuations in the rising and the setting of the sun and the position of the earth as it rotates.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.