In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Civil War soldiers didn't take their wives with them to the battlefield, but they took along a piece of home: little sewing kits called "housewives".

Teach your kid a fun mathematical magic trick! All you'll need is a deck of cards and basic addition, subtraction, and multiplication skills.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

Your child will learn a whole alphabet of different jobs while they complete this brain-teaser chart just in time to celebrate Labor Day!

Frida Kahlo was a famous Mexican painter. In this activity, your child can put pick up a paintbrush and create a self-portrait inspired by this renowned artist.

Eating a healthy breakfast starts the day out right, and your child can make something tasty and nutritious while honing her culinary skills!

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Mix up a batch of molasses cookies, and you'll have a delicious chance to teach your child some math and social studies in the process!

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

Reinforce your child's measurement and problem solving skills this holiday season! This decadent bread pudding, dressed up with pumpkin and warm spices, is a holiday show-stopper.

Have fun making recycled paper using scraps of used paper in your home with this hands-on project.

Make a bouquet of colorful duct tape flowers in this hands-on spring craft.

Take a stab at 18th century American cooking with your kids by following this tasty recipe from one of the first colonial cookbooks.

Celebrate Black History Month by having your child make her own version of a kente cloth after learning what the different colors on a kente cloth symbolize.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Petanque, a traditional French lawn game, is a wonderful activity to entertain groups of kids and help them learn a little bit about other cultures.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Here's an activity that lets your third grader, fourth grader, or fifth grader bring the warmth and light of lanterns into your home by making his own.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Here's an activity to teach your fourth grader how to reflect on her past year and set specific, attainable goals to reach in the New Year.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.