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.

What a wonderful world word search! See if you can find all 10 of the Earth-related terms in the word search.

From glaciers to mountains to wetlands, our planet has lots of different landforms. Help your child learn all about them with this fun earth science crossword.

Did you know the surface of the Earth is always changing? Learn about the events that change Earth's surface with this crossword puzzle for second and third graders!

Earth has many different land and water features—can you recognize them? Test your knowledge with this crossword puzzle for third and fourth graders!

Here's a fun way for kids to review their knowledge of earth science terms. Challenge your child to give a definition of each word as he finds it.

For all you mad scientists, here is a helpful lab safety 101! You'll get to read a few basic rules, and then complete a word search.

The Earth is very much alive, even its rocks shift and change. Practice geology vocabulary with this challenging word search.

What's the weather like today? Here's a word search perfect for any budding meteorologist.

Here's a fun way to review photosynthesis with your child! She'll show off her science knowledge as she answers questions to complete the crossword puzzle.

Discover the many different kinds of conifer and deciduous trees as you complete this word search!

In which habitat could you find an arctic fox, a polar bear, and a snowy owl? Have your kid find tundra animals with this word search worksheet.

If you know what each planet looks like, you'll have no trouble with this intergalactic crossword puzzle.

In which habitat could you find a blue whale, a squid, and a shark? The ocean, obviously! Have your kid find ocean animals with this word search worksheet.

Watch out for this charging ram! The stars in the Aries constellation make up a ram -- if you use your imagination.

Test your memory skills as you review the different types of animal body coverings with this animal memory match game!

Do you know what the Aquarius constellation looks like in the night sky? Complete this dot-to-dot worksheet to find out!

You have over 600 muscles in your body! Kids can try this muscle anatomy word search featuring 14 important muscles.

Pigs, cows, and ducks, oh my! The clues in this animal crossword puzzle worksheet will help you remember what animals there are on a farm.

Use the clues in this crossword puzzle to fill in the blanks with different types of snake names. Learn interesting facts about snakes as you go!

Did you know that invertebrates don't have backbones? Find out some different types of invertebrates with the clues in this crossword puzzle.

Do you know what can be found in the desert? Teach your child to read and spell a few new vocabulary words with this desert word search!

Do you know the functions of the primary organs in the human body? Put your knowledge to the test with this fourth- and fifth-grade crossword!

Do you know which animal has two humps? Your child will use clues to determine what animal name fits in the crossword puzzle with this worksheet.

Did you know some baby birds take 10 days to hatch, and some can take 80 days! Learn all about these cute creatures and finish your lesson off with a fun maze.

Practice geology vocabulary with this challenging crossword puzzle.

Review the rock cycle with this second-, third-, and fourth-grade crossword puzzle!

If your child is fascinated by outer space, he'll love this solar system word search! While reviewing planet names, he'll ponder the mysteries of the universe.