These two children sure look alike -- maybe because they're twins!

Use this cool 2-page worksheet to make your own big dipper clock!

Use this fossils worksheet to help a child learn about life on earth. Your child will learn about evolution and extinction, and also form a hypothesis.

Print out a set of weather-themed postcards to give your child practice identifying seasons. These weather postcards also allow kids to practice writing skills.

Did you know snowflakes are so unique, there are no two alike? Teach your child about how snow forms with this worksheet.

Cave formations come in all kinds of shapes and sizes; get the scoop on common cave formations with this two page printout with a maze and vocabulary.

Uncover secrets of the past with this third-grade worksheet about fossils!

Explore the science of the sun with this make-your-own sundial activity! Just do a little bit of cutting and coloring, and let the sun do the rest of the work.

Does your little gardener know about compost? Test their knowledge of this sensationally smelly earth science process!

Tree climbers and tree huggers alike, learn the basics of reading tree rings to find out about the life of a tree.

The earth is always changing and moving.Learn all about weathering and erosion with this worksheet.

What is a plateau? What's the difference between a butte and a mesa? Look at these three land forms and learn to tell them apart with this worksheet.

In this puzzle, children will trace the names of the seasons, then cut them out and paste them below the correct picture.

Here are listed a handful of natural resources, for kids to classify as renewable resources and nonrenewable resources.

Learn about a few common insects and arachnids as you color them in!

Learn about and color in space suits in this three-page science worksheet!

Search for natural resources at the beach in this engaging worksheet for second and third graders!

Try to find natural resources in this camping-themed worksheet for second and third graders!

This solar system worksheet guides your child through the order of the planets. Use this solar system worksheet to learn about the planets in the Milky Way.

Search for natural resources with this fun worksheet for second and third graders!

A natural resource is something that we use that occurs naturally in the environment. Teach your child about the densest and heaviest natural resource: rocks!

Explore how Earth’s surface can change in this investigative second-grade worksheet!

Dig into the past with this third-grade worksheet all about fossils!

Discover some of the ways that Earth’s natural resources are used in this first-grade worksheet!