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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.

How do organic materials become soil? This science experiment measures what materials biodegrade.

This project compares the strength of one, two, and three-ply toilet paper.

Create a self-portrait from natural materials in this collage craft activity!

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

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

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

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

This project investigates the affect of storage temperature on microwave popcorn.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

In this experiment we will be determining whether birds prefer certain colors of seed.

This science fair project idea explores how length affects the weight a bridge can hold.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

This science fair project idea explores the different properties & interactions of sugar molecules.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project examines how seeds hitchhike on animals and clothing.

Find out whether putting something on top of a plant will inhibit its growth.

In this design challenge, your child will create a parachute for a small toy using typical household items.