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How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

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 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 how to make a weathervane with this fun and simple meteorology project for fourth graders.

Is your child a nature nut with an eye for creative, green-friendly projects? Introduce them to this amazing DIY bird feeder!

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.

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

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!

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

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.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

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.

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.

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

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

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

In this fun experiment, we'll find out how color affects heat absorption!

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!