What is the purpose of a narwhal tusk? Explore some interesting new findings about the narwhal, also known as the unicorn whale.

Did you know opossums are marsupials, which means they have a pouch! This fun worksheet is jam-packed with fun facts about the opossum!

Did you know chameleons can sleep upside-down? Learn more about chameleons with this fun worksheet, jam-packed with fun facts and activities!

Explore how the fossil record is used to study the evolution of organisms in this engaging science worksheet for middle grades!

Explore the difference between asexual and sexual reproduction in organisms with this middle school science worksheet!

Did you know cougars can leap 20 feet from a sitting position? This fun worksheet is jam-packed with fun facts about the cougar!

Is it true that male seahorses get pregnant? Find out with this fun, fact filled worksheet, all about seahorses!

Ever wonder why zebras have so many stripes? Find out with this fun worksheet all about the zebra!

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 some caribou travel 3,000 miles in a year? This fun worksheet is jam-packed with fun facts about the caribou!

Did you know chinchillas were almost extinct? This fun worksheet is jam-packed with fun facts about the fuzzy chinchilla!

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

Learn all about the different jellyfish and then test your knowledge with the questions at the bottom of the page.

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.

Try out this simple worksheet diagramming the anatomy of a shrimp. Big words, small sea creature.

Learn about the animal kingdom with this centipede anatomy worksheet. Fun fact: Centipedes have either 15 or 17 pairs of legs, but never 16!

Try this worksheet diagramming a snail anatomy. It takes a snail over two minutes to travel 12 inches, but your 5th grader can finish this worksheet in no time.

Meet the beetle! Filling out this simple worksheet can help your 5th grader learn the anatomy of a beetle.

There's not much in the animal kingdom more interesting than tentacles with suckers! Learn about octopus anatomy with this worksheet.

Kids love squids! This simple squid diagram will help your 5th grader memorize the squid anatomy.

Learn about the features of plant and animal cells in this compare-and-contrast 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!

An animal cell is made up of many different organelles—color them all in this middle-grade worksheet!