How does blood flow through the heart? This worksheet prompts kids to map how blood is pumped through this sophisticated organ.

Children will learn important facts about food chains in these worksheets.

This packet of worksheets introduces children to food webs, an important life science concept.

These worksheets help kids understand food webs, an important part of the life science curriculum in fourth grade.

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

Soar through a series of Australian animals worksheets, stopping to appreciate massive birds like the wedge-tailed eagle and its 7-foot wingspan!

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

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

Don't be crabby! This worksheets introduces your child to a fascinating crustacean. Fill in the anatomy of a crab using the numbers in the word bank.

Learn more about two kinds of aquatic biomesÃfreshwater and saltwater biomesÃand how you can tell them apart.

Sandy the bee is going to a party tonight. Encourage your 2nd grader to help him get there on time by drawing hands on the clock for him.

If your kid gets excited about snakes, you need this cool worksheet. Learn a bit about carpet pythons, such as what colors they may be, and then color the picture.

Get to know the residents of the reef with this coral reef-themed crossword, perfect for expanding life science knowledge and working on vocabulary, too!

See which snail has gotten the farthest with this 2nd grade measurement snail race worksheet.

Learn all about the ooey-gooey areas of land called wetlands that provide a home for certain kinds of plants and animals.

Use this fun frog worksheet to practice place value and expanding numbers.

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.

Count the number of sea creatures and make a bar graph with this shark worksheet. Make an underwater word ladder with your 2nd grader, too.

Learn more about what lives--and what thrives--in marshes with this fill-in-the-blank worksheet on marsh ecosystems.

Learn about hearing and ear anatomy while doing an ear maze! Kindergarteners learn about the five senses, so challenge your child with fun stuff like this!

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

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

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

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!

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

Find out more about what REALLY dwells in swamp ecosystems with this worksheet all about swamps.

Help your 2nd grader crack the code using triple digit addition and subtraction to find out what parts of camels can be used to make some tasty dishes.

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

As your kindergarten kid learns the five senses, use this worksheet to help her associate new words with different tastes.

Can't go to the zoo? We bring the zoo to you! Check out the fulvous whistling duck, a bird with social skills and the willingness to share each other's nests.