Play Rock Tic-Tac-Toe, the perfect outdoor game for all ages. Help your child develop thinking skills and get away from the TV!

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

This science fair project idea explores the egg's thin membrane.

The goal of this science fair project is to attempt to build a perpetual motion machine and analyze the Laws of Thermodynamics.

This project compares different liquids and the freezing, melting and boiling points of liquids.

In this experiment you simulate radioactive decay in order to gain an understanding of the basics of half-life.

This experiment will explore if magnetism has any effect on the regeneration abilities of flatworms.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

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.

The objective of this science fair project is to observe the properties of friction and apply this knowledge to search for a near-frictionless surface.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

This science fair project idea discovers new ways to use recycled materials and encourages new architectural design ideas.

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

Make frog feet sponge prints with your child for a fun and educational crafts activity.

This project determines whether hands-on practice, mental practice, or no practice leads to better shooting of free-throws.

This science fair project idea attempts to develop a new or improved eco-friendly packing material.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

Test of the effect of exercise on rote memory. Prepare a single list of 40 randomly chosen words. Have volunteers recall as many words as possible.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

This science fair project idea identifies the properties of soap bubbles and invents a new or improved bubble solution.

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

This experiment will examine and precisely measure the amount of sugar in various sodas.

Examine how the tire treads of a bicycle affect its rolling frictional force. Change tires, test speed performance on different terrains.

This science fair project idea is develops a modern interior lighthouse design and encourages lighthouse preservation and restoration.

Discover the force of water! This article provides step-by-step instructions for creating your own science experiment.

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.