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.

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.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

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.

This science activity will help your student explore the changes that occur to transform an egg from raw to soft to hard-boiled.

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

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

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Using a toy race car kids create a visual model of the Doppler Effect.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

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.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

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

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

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

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.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

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

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.