This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

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

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Slip some science into storm watching with a homemade rain gauge!

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

This second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

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

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Help your child make a beautiful homemade sandcastle that will last!

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

This project determines what category of person is most likely to be ticklish.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

This science fair project idea explores whether talking to a plant will help it grow.

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.