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.

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

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

You have over 600 muscles in your body! Kids can try this muscle anatomy word search featuring 14 important muscles.

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

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

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!

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.