This science fair project idea produces varying pitches of sound.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Invite your third grader to do taste test science to observe how a strawberry tastes when it is paired with various condiments. The results may be surprising!

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Find out whether a longer airplane will fly farther or a wider paper airplane.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

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

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

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

Examine the effect of pressure on carbonation in soda.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

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

Explore if planting seeds in a certain direction will affect how fast it germinates.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

Make a backbone model to explore human anatomy and life science.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Have your child kick off their summer vacation by making a miniature water slide!

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!