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

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.

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

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.

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

This science fair project idea identifies trees using a dichotomous key.

Here's a household scavenger hunt that shows kids the natural sources behind everyday objects...and builds reading skills, too!

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

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

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

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

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.

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

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

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

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

This adventurous art project will send kids on a scavenger hunt for fall materials they can use in their artwork. This craft also teaches kids about seasons.

Give some of your local ladybugs a warm place to stay for the winter by making a ladybug home with recycled 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.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

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.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

In this project students experiment with making music using only glasses of water.

Construct and experiment with a periscope using reflected light rays to gather an image.

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

This science fair project idea produces sounds by creating vibrations using different objects.

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

In this design challenge, your child will make a bottle rocket using typical household items.

In this science fair project you will make a model of a cell membrane using very simple material.

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!