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!

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

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.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

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 fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

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.

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

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

This science project allows students to study the psychology of happiness.

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 science fair project, we learn how air molecules move as a result of density, convection, and air currents.

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

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.