In this project children practice the scientific method while playing with puffy paint.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

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

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

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

Is it a square or a circle? See if you can trick your friends with this zany science project!

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

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

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

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

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

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

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

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

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.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

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.

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