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.

This experiment demonstrates the conservation and transfer of energy using a marble rolling over sandpaper.

Look at people's face shape. Do you think their face shape affects your perception of kindness? Find out more in this science fair project idea!

Would you be able to tell the difference between colored contacts and natural eyes from a normal distance? Find out in this science fair project!

In this fun experiment, we'll find out how color affects heat absorption!

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 tests whether it is true that humans are in the morning than later during the day/night.

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

Will the shape of an ice cube impact how fast the ice melts?

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

Use pepper and soap to discover some fun facts about the properties of water.

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.

The goal of this science fair project is to demonstrate magnetic forces of attraction and repulsion using a magnet and everyday objects.

Science fair project that helps you create your own compost pile in order to test the efficiency of different methods of composting.

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

Are you ready to pilot your own airplane? Well, then take to the skies with this high-flying project!

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

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

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

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

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.

Create uphill flow of water by using a siphon. Create vacuum by suctioning one end of tube, and submerge it under water. Watch the direction the water travels.

Examine the effect of pressure on carbonation in soda.

This project examines the concentration of dissolved oxygen in water, with and without oil.

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.

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

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.