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!

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

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

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

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.

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.

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

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

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

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

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.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

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

This surprisingly good glue recipe comes from common kitchen items.

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.

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

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!

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

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.

Here is a nifty science experiment using Epsom salts to make "frost" appear on a piece of glass.

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

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

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.