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

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

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

Never heard of the planet Pirjute? That's because it's Jupiter, with mixed-up letters! Kids unscramble planet names on this third grade science worksheet.

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.

Find a definition of what "natural resources" are, and complete the natural resources word search. It's a good vocabulary warm-up!

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.

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.

Practice geology vocabulary with this challenging crossword puzzle.

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

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

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.

Don't let your kid bark up the wrong tree! Engage him in a word search filled with tree terms, boosting his attention to detail and problem solving skills.

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

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!