How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

This classic children's game demonstrates how sound travels through air vs. through a solid.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

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

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

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

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!

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

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

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Is it a square or a circle? See if you can trick your friends with this zany science project!

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

This project can help prepare your child for a trip to the tide pools, or give him a way to remember some of the many creatures he saw during his visit.

Plants and light seem to be good buddies, but how far does the friendship really go?

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

In this activity your child will create their very own marble maze!

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

This project examines whether people's taste perception is influenced by what they see.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.