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.

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!

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

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.

Learning about the functions of plant parts doesn’t have to be puzzling! Review the parts of a plant with this crossword for first and second graders.

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

Budding inventors can get a fun review of the simple machines with this word search.

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

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

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.

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.