Using a toy race car kids create a visual model of the Doppler Effect.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

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.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

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

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

How powerful is the reaction between baking soda and vinegar? Find out here!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This science fair project idea investigates if fats add to the flavor of food.

This science fair project idea investigates the difference in reaction times between boys and girls.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Cleaning can be a chore, but not with this sudsy experiment!

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.