This science fair project idea demonstrates that plants give off water.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This science fair project idea investigates how magnetism can defy the force of gravity.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

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

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

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

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Do different types of oil mix or stack? Find out in this science fair project idea!

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

This play-activity causes young children to focus on and become more aware of their sense of hearing and the power of their ears.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

This science fair project will help students learn about non-vascular plants, such as mosses.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?