Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

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

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Using scherenschnitte, your science-savvy second grader will be able to create and display each part of a vegetable!

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

Try this simple 2nd grade science experiment to teach your child about the principles of luminosity and light reflection.

Enjoy those warm spring and summer nights with your child while teaching some basic astronomy at the same time.

Your child can help your family pet take a breather, and help herself relax, too, with this soothing activity.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

Create your own cloud with an activity that will explain how important concepts such as evaporation, condensation, and precipitation work.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.