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.

Grab your colored pencils and your crayons and get your creative juices flowing with a story starter worksheet that lets you add the illustrations!

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!

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

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?

Our solar system might fit on this cool coloring page, but in reality it's 3.7 billion miles from the Sun to the dwarf planet Pluto!

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

Construct your own map with this hands-on science worksheet for second graders!

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

See the wind in action! Little scientists can make and decorate their very own windsocks to hang in the breeze, using this template.

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

The holiday season is here! Bring this cool snowman to life by coloring him according to the color chart.

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

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.

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!

Discover Earth’s four major systems, or spheres, in this engaging fifth-grade worksheet!

Learn what distinguishes a meteoroid, meteor and meteorite with this outer space science sheet!

What is Pluto? According to scientists... no, not quite. Find out more behind the answer to that age-old question.

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