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

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.

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

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

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

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

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

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

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

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 identifies and understands adaptations in birds.

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

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

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 baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.

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 science fair project idea produces varying pitches of sound.

Is there any correlation between hot tubs and high blood pressure? Kids discover the answer (and its biological basis) in this cool science fair project.

Find out whether packaged seeds actually do expire in this new science fair project idea.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.