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This science fair project explores how osmotic pressure forces water through the root up into the plant.

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.

This project examines whether corked bats truly make a ball travel farther than wooden bats that haven't been altered.

Find out which part of a flame burns wood the fastest and also if this is true for all types of flames such as candle-flame, burners, and lighters.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

This science fair project idea investigates the hardness property of minerals.

Learn about what happens to a current-carrying wire in a magnetic field in this cool electromagnetism experiment!

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

This science fair project idea provides evidence that air is everywhere and takes up space.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Will male or female hair grow faster? Find out in this science fair project idea!

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

Dig into the physics of pool to explore some cool applied math and learn about what happens in an elastic collision of equal masses.

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

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

This science fair project idea demonstrates the process of land erosion.

Do you think heat can affect a plant's growth rate?

This science fair project idea explores the different properties & interactions of sugar molecules.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

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

Science fair project that uses distillation to convert salt water into fresh water.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

This experiment strives to determine if tracking of conservation habits will lead to reductions in a family's electricity and water bills.

Get a cool and easy science fair project idea which helps high school students in understanding concepts behind the working of a microphone.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Science fair project that determines what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.

It has long been believed that weather influences mood and behavior. This experiment will evaluate if weather can really impact the way people feel.