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.

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.

Children learn the fascinating physics behind lightning, along with a few fun facts, in this physical science worksheet.

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!

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

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.

How much does your child know about the animal kingdom? Help her discover interesting facts with this animal crossword.

What has two legs and carries its baby in a pouch? Fill in this crossword puzzle and learn some fun facts about two-legged creatures!

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!

Dinosaurs and other creatures don't exist anymore! Learn the names of some extinct animals, and look for them in this fun wordsearch puzzle.

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

Practice geology vocabulary with this challenging 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.

Worm your way through this soil maze, which doubles as a fun way to review the names of the different soil layers.

Where do flower babies come from? Find the answers in this word search about plant reproduction!

Where to flower babies come from? Use this word search to learn about the different pollinators in our environment, and how they help spread plant seeds.

Children get to know a few geology terms in this landform word search puzzle.

Not your typical crossword, this puzzle will have your child learning to recognize the shapes of the continents. Great for map skills and vocabulary!