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

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

This kindergarten science activity will help her explore the changing states of matter which transform an egg from raw to soft to hard-boiled.

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

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.

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 craft is an excellent way to learn about African-American history, and it also provides fine motor practice.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

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

Kids conduct a simple science experiment to see if seeds can grow without soil in this simple kindergarten science activity.

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

Here is a quick experiment you can conduct at the playground to introduce or reinforce the concept of Newton's First Law, The Law of Inertia.

This activity is a great way to teach kids that, to find examples of science in action, they donât need to look any further than their own backyard.

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

Help your fifth grader embrace the roots--literally--of Mother's Day by growing carnations to honor mothers in you family's history.

How much water comes out of snow? Explore this timely question with your kindergarten scientist with this easy winter experiment.

The goal of this project is to create an exciting topographical map out of dough.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.