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

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

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

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.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

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

In this science fair project, young children discover what happens when two fluids that have different densities get together.

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

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

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.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

Before your treat your child (and yourself!) to a yummy snack, help her learn a little about Sir Isaac Newton's First Law of Motion!

What's cooler than an explosion? Not much! This simple science experiment lets kids build their own pop rocket. So put on your safety goggles and let her rip.

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

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.