How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

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 science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

How powerful is the reaction between baking soda and vinegar? Find out here!

In this science fair project, students create their own miniature salt flats at home.

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.

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.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

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!

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 idea determines if the color of light affects the growth of plants.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

This science fair project idea determines the most effective method of preserving food.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

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.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

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.

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.

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

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

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

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