This science fair project idea is develops new or improved paper making techniques and encourages recycling.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

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

This science fair project idea provides evidence that air is everywhere and takes up space.

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.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

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

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

This science project teaches students to classify different shapes of leaves.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

This science project idea examines the effect of microwaving on various objects.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin

The project investigates the affect music has on plant growth while experimenting with rock, classical and no music.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

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 creates cool new colorful fabric pattern designs and experiments with the mixing of colors.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

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