This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

This classic children's game demonstrates how sound travels through air vs. through a solid.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

Using a toy race car kids create a visual model of the Doppler Effect.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

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.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

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

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

This activity is a fun challenge for students who have just started learning to program educational robots.

In this activity your child will create their very own marble maze!

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

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

Here's a science activity to help your child investigate how seeds are designed to travel.

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!

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

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

In this activity, your child will be challenged to make a tower using paper cups.

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