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

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.

Step up to the controls, Dr. Frankenstein -- the world is in need of a new creature!

There's not much in the animal kingdom more interesting than tentacles with suckers! Learn about octopus anatomy with this 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 that invertebrates don't have backbones? Find out some different types of invertebrates with the clues in this crossword puzzle.

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

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!

Dragonflies are some of the oddest looking insects in the world, so it's appropriate that they have so many unique characteristics. Read all about them!

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.

Did you know an elephant can eat 300 pounds of food in one day? This fun worksheet is jam-packed with fun facts, a word search and trivia, all about elephants!

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

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

Use your knowledge of sea creatures to fill out this crossword puzzle.

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

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

Did you know you're 1,000 times more likely to drown than you are to be bitten by a shark? This fun worksheet is jam-packed with fun facts about the shark!

How many teeth does an alligator have? Find out with this fun worksheet, dedicated to teaching you and your child all about alligators!

How much do you know about the U.S. national bird? Learn all about the bald eagle with this fun, informative worksheet!

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

Did you know a baby kangaroo is called a joey? This fun worksheet is jam-packed with fun facts, a word search and trivia, all about the kangaroo!

Ever wonder what's inside a camel's hump? Find out with this fun worksheet! It's jam-packed with facts about camels.

How much do you know about man's best friend? This fun worksheet is jam-packed with fun facts about dogs!

Did you know wolves are the largest members of the dog family? This fun worksheet is jam-packed with fun facts about the wolf!

Why did the fox cross the road? To look for the chicken! This fun worksheet is jam-packed with fun facts about foxes!

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

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

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

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

Kids learn important plant and animal cell vocabulary as they plug the words into their correct spots and complete the puzzle.