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

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

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.

Create your very own scented hand sanitizer that will help your child to keep those nasty germs at bay!

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

This adventurous art project will send kids on a scavenger hunt for fall materials they can use in their artwork. This craft also teaches kids about seasons.

Engineers in training can get started with this simple wheel-and-axle construction activity.

Use dirt and different colors of craft sand to make unique layers in a clear plastic cup to represent the layers of the Earth.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

Come take off your shoes and explore with your feet. Your child will embark on a barefoot adventure as he plays with different textures.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Hunt for natureâs treasure, the many different products made by trees!

Teach your child about healthy foods and how to make a meal that is good for them with this fun activity that you both can do together.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

If you're looking for something to keep your kid busy on a warm day, and give him some writing practice in the process, bring on the mud!

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

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

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.

Challenge your young dinosaur lover to examine dinosaur footprints and then create their own dinosaur fossil in this hands-on activity.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Take a trip to the pet store and then make a scrapbook to help your kindergartener learn the difference between living and non living things!

Conduct a simple experiment with your child to study how dirt tracks change as they age in this 1st grade science activity.

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

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

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