Which comes first, genus or phylum? To complete this life science crossword, kids need to put the 9 levels of biological classification in the correct order.

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.

Review energy terminology with this fun fourth-grade crossword puzzle!

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

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.

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!

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

Searching for a worksheet to help your fourth grader with science? This printable will help him practice astronomy vocabulary.

Review the terminology of collisions with this engaging crossword puzzle for fourth 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!

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

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!

Use clues to fill in the boxes in this crossword puzzle, and learn more about freshwater fish along the way.

There are a lot of structures that make up a new plant, called a seedling. Your child will learn what they're called with this life science word search.

Invite spellers on an inter-stellar adventure with this fun word scramble puzzle.

What's the animal that swims upstream? Help your child figure this out with this cold-blooded animal crossword puzzle worksheet.

Help your child practice her spelling and vocabulary with this fun worksheet! Discuss with your child what it means to be cold-blooded.

Challenge your child' memory skills with this colorful worksheet. This fun printable will help with memorization skills and spatial awareness.

Test your knowledge of prehistoric animals with this life sciences crossword puzzle!

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.

Looking for a worksheet to help your child with science? This printable will help them with their biology vocabulary.

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