Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

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

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

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

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.

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.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

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!

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.

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

This surprisingly good glue recipe comes from common kitchen items.

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.

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.

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!

Teach your child how butter is created by shaking up cream the old-fashioned way.

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

Satisfy your sweet tooth with this easy summer activity! Make homemade ice cream and let your child practice his science skills.

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

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

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

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

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!

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!