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

Every four years something funny happens with our calendars -- we add a day! Why do we do this? Discover the science behind leap year.

Looking for a quick reference about gravity and a definition for kids? This two page worksheet and activity has you covered!

Learners will discover what heat waves are, and how they are connected to global warming, in this two-page earth sciences 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!

Let your kid's knowledge of leaf vocabulary climb as high as a tall, tall tree with this fun word search.

Learn a bit about meteors, asteroids and comets as they travel across the night sky. Can your child round out the page by adding color to these orbiting rocks?

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

Space enthusiasts will love learning about Freedom 7, the first manned American space mission.

How well does your child know the layout of our Solar System? This worksheet focuses on the biggest planet, Jupiter.

This worksheet teaches all about the planet Saturn and its placement in the Solar System.

Teach your child about the layout of the Solar System with this simple worksheet, featuring the planet Neptune.

Learn about some of the major U.S. watersheds in this fascinating science and geography worksheet!

Discover how cover crops enrich soil and support healthy crop growth with this research-based worksheet for fourth and fifth graders!

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

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.

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!

Search for natural resources with this fun 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.

Discover Earth’s different spheres with this fourth- and fifth-grade earth science activity!

Right now the Earth is spinning, whether we can feel it or not. Do you know why? Uncover the science behind our spinning planet with this informative worksheet.