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

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

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

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

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

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

Kindergarten algebra is a lot different than high school. In kindergarten math, algebra means grouping like things, or noticing what doesn't belong in a set.

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.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

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

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.

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

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

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

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!

Play Rock Tic-Tac-Toe, the perfect outdoor game for all ages. Help your child develop thinking skills and get away from the TV!

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

Make "fossils" with your child to hide in the sandbox or at the park or the beach, to help your child explore his archaeological side.

Make a spring collage with your child to get them outside and those creative juices flowing!

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

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.