This fun and crafty activity is easy enough for your child to lend a helping hand and makes a great indoor or outdoor game.

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

Kids will enjoy this cool demonstration of Newton's Third Law and the conservation of linear momentum.

The objective of this free science fair project is to examine the way in which the phases of the moon affect circadian patterns in mammals.

This science fair project determines if the allelopathic chemical produced by the black walnut tree biodegrades immediately or persists over several days.

Can playing video games trigger an adrenaline rush even though there's no real danger? In this cool experiment you'll learn all about how fight-or-flight works!

The goal of this project is to create an exciting topographical map out of dough.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

Use a dichotomous key to identify plants or animals.

The goal of this science fair project is to demonstrate the effects of oxidation by writing a message in invisible ink made from lemon juice.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Determine the maximum distance traveled by projectiles launched at an angle. Use some cool math to figure out at which angle your projectile will go farthest.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Science fair project which identifies the most effective insulator that you could use to make a winter coat by comparing how well cloth and cotton trap heat.

Science fair project that examines condensation and the conditions needed in order for dew to form.

This science fair project idea investigates how magnetism can defy the force of gravity.

Try this activity with your child to explore what happens to rain (and the living things that need it) when it becomes polluted.

Evaluate the ability of a biodegradable dish detergent to increase the penetration of water in hydrophobic soils.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

This science fair project idea explores substances that cause a bubble to last longer.

Want to spark your third grader's interest in gardening? Help him make popsicle stick fairies to decorate an enchanting garden oasis.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

This project examines whether corked bats truly make a ball travel farther than wooden bats that haven't been altered.

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

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

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

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?