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In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

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

This experiment investigates the relationship between the temperature of a candle and its burn rate.

This science fair project idea experiments with spinning color wheels and optical illusions.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

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

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

This science fair project idea explores whether talking to a plant will help it grow.

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

This science fair project idea produces varying pitches of sound.

This experiment evaluates if a noisy environment makes it harder for test subjects to perform tasks that require hand-eye coordination.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

This project examines Newton's First and Second Laws of Motion with a bicycle and water balloons.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

The goal of this science fair project is to determine which cheese grows mold the fastest: Vermont Cheddar, American, Brie, or Camembert?

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.