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

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.

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

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.

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

Kids find grassland animals in this third grade science word search. Animal habitat worksheets help students learn about life forms in different environments.

Practice geology vocabulary with this challenging crossword puzzle.

Put your kid's observational skills to the test with this word search that will help her learn some of the animals that inhabit a rainforest.

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.

Where do flower babies come from? Find the answers in this word search about plant reproduction!

What has two legs and carries its baby in a pouch? Fill in this crossword puzzle and learn some fun facts about two-legged creatures!

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.

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

In which habitat could you find an arctic fox, a polar bear, and a snowy owl? Have your kid find tundra animals with this word search worksheet.

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