Use dirt and different colors of craft sand to make unique layers in a clear plastic cup to represent the layers of the Earth.

Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

Help your kindergarten scientist explore an important part of earth science: how soil retains water.

Can't make it to the beach? Bring the science of ocean waves home with this fun earth science-related craft.

Your child can use leaves and grass to create his own outdoor art in celebration of Earth Day...all he needs are is the great outdoors and some creativity!

It's a rare kid who doesn't like a sandbox. Next time you're out digging, build in some earth science, too.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Try this simple 2nd grade science experiment to teach your child about the principles of luminosity and light reflection.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

Creating a home for a toad is an easy and fun project for kids. Here's how to make your very own toad abode.

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Try this activity with your child to explore what happens to rain (and the living things that need it) when it becomes polluted.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

Kids are sure to be entranced by the magic of the ocean when they create their very own ocean in a bottle.

With some cookie dough and ordinary household objects, let your kindergartener explore how fossil imprints are made.

Is our water polluted? Help your young scientist understand the importance of taking care of the environment with this simple experiment.

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

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

This activity is a great way to stretch the boundaries of your child's imagination and build up important critical thinking skills.

Learn about nature by making your own mini moss garden.

Take a closer look at the soil that surrounds us, and give your child a lesson in Geology 101!

What's a crater, and how does it happen? Here's a kindergarten experiment with safe, nontoxic ingredients.

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

Help your child celebrate the summer and the sun by making a sandy seascape.

Before Twitter, birds were the ones tweeting, not humans. Have your child discover the magical sounds of nature while recording birds around his neighborhood!

Enjoy those warm spring and summer nights with your child while teaching some basic astronomy at the same time.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.