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

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.

Fifth-grade learners will look at a diagram of a cell, then follow the instructions to label its parts by color.

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

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

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!