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!

People have favorite flavors, but what about ants? Which ant food is the most popular?

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.

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!

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.

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.

Word color association is just a fancy way to talk about the way we connect colors with words.

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.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

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.

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

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.

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.