This science fair project idea produces sounds by creating vibrations using different objects.

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

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

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

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

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

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.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

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

How do organic materials become soil? This science experiment measures what materials biodegrade.

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

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

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.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

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