How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

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

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.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

In this experiment you will replicate the mummification process by making a hot dog mummy.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

The project determines the forces that cause paper airplanes to fly and determine which type of paper airplane flies the farthest.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Plants and light seem to be good buddies, but how far does the friendship really go?

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project idea teaches to understand and explore the concepts of crystal formation and dissolving substances.

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

Challenge your learner to design and build a city of their own in this creative engineering activity.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

This science fair project idea's objective is to become familiar with items your family regularly throws in the trash.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

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

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

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

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.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

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

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.