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:

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.

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

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

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

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.

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.

You don't need to head to the Arctic to experiment with life in an igloo. Learners can build their own ice igloo at home from water and empty milk containers.

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

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!

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.

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

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.