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

How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

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.

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.

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

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.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

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.

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

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!

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Teach your child about using pumps to move water in this simple and educational preschool science activity!

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.

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

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

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

This is a fun way to introduce kids to the concept of volume, and give them a quick hands-on activity to boot.

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

Your 1st grade scientist will improve her observation skills as she's encouraged to eat healthy by comparing the dry and fresh fruit in this experiment.

Blanket forts are a kid classic! Let your child create a âfortress of solitudeâ on his own for reading, telling scary stories or for cozy cocooning.

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