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

This worksheet is all about the U.S. space mission of Friendship 7, and will help kids with reading comprehension and U.S. history knowledge all at once.

Get swept up in this comprehensive worksheet about the awesome power of dust storms.

Have you ever wondered what keeps the moon in orbit? Newton's first law gets a quick introduction, too, in this worksheet for kids. Check it out!

Here's a great introduction to five famous astronomers for kids. See who got the star party started with this worksheet.

Searching for a worksheet that will help your child practice their reading skills? This printable uses life science as a background to help young readers.

Searching for a worksheet to help your fourth grader with science? This printable will help him with geology.

Invite spellers on an inter-stellar adventure with this fun word scramble puzzle.

Searching for a worksheet to help your fourth grader with science? This printable will help him practice astronomy vocabulary.

This worksheet will quiz your child on the different fields of study in science. What's the difference between a zoologist and a geologist? Find out here!

Looking for a fourth grade worksheet to help your kid with astronomy? This printable will help him learn the relative sizes of planets.

Looking for a fourth grade worksheet to help your kid with science? This printable will test his knowledge of the water cycle.

Looking for a worksheet to help your kid with science? This printable will help him with his knowledge of geology.

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

Searching for a worksheet that will give your kid help with his science skills? This printable will challenge his knowledge of plants.

Test your child's science savvy with this worksheet, which asks your child to identify what items are made from plants.

Give your kid help with his science skills with this worksheet, which practices natural disaster vocabulary.

Teach your child about plants with this worksheet, which helps your child practice botanical vocabulary.

Learn about how the Earth was formed in this science worksheet that covers the early years of the Earth.

What is the Earth? Here is a reading passage and a word search to help your kid get acquainted with Earth science.

How do the Sun and the Moon interact with the Earth, and how do all three depend on one another? Find out in this science worksheet.

What does the Earth look like? Find out all about the nooks and crannies that cover the planet with this landforms worksheet.

From nature hunts and rock painting to recycled art and poetry writing, these activities combine scientific exploration with arts and crafts projects.

What is the Earth made of? Find out everything that goes on just below the surface in this science reading worksheet.

Where is the Earth in space? Check out this worksheet that describes where weÃand some of our neighborsÃare in our galaxy.

Life on Earth is vast and varied, from high in the sky to the bottom of the sea. Learn more about what lives on Earth with this reading and quiz worksheet.

This Earth Day quiz family and friends with this true or false questionnaire. It's all in good, informative, fun!

A fun challenge for kids, this Earth Day crossword puzzle is a great way to review facts about the Earth and get a reminder on how to live green.

It's easy being green when you have our Earth Day game for a guide. Just print out this Earth Day game and get ready to score one for the planet.

Learn all about rivers--how they were formed, what they're made of, and what they do for us and the planet--in this reading and science worksheet.