In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

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

This project compares the strength of one, two, and three-ply toilet paper.

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

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

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

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 popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

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

Is your child a young ornithologist in the making?

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 science fair project idea investigates how the shape of an object affects drag.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

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 projects, students will grow out the bacteria that collect on air conditioner filters.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

This science fair project idea explores how length affects the weight a bridge can hold.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

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

This science fair project idea examines which type of insulation holds in the most heat.

In this fun activity, your child will create their very own solar oven to bake s'mores!