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.

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!

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.

Break down a word to create new ones with this fun worksheet for second through fifth graders!

Invite budding naturalists to sharpen their observation skills with this colorful, printable scavenger hunt.

This word search helps expand kids' animal vocabulary and introduces them to animals that live in shells, all while keeping them entertained.

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.

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

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

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

Who feels at home scaling a nice, big tree? This word search is a fun way for your little one to familiarize themselves with different tree-climbing animals.

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