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

Use the clues in this crossword puzzle to fill in the blanks with different types of snake names. Learn interesting facts about snakes as you go!

Get to know one of the most unique and colorful monkeys, the red-shanked douc langur. Read about why they are an endangered species with this info-sheet.

Have you ever wondered why giraffes have long necks or why lions have sharp teeth? Find the answers in this third- and fourth-grade worksheet about adaptations!

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

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!

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

Meet the red wolf, an endangered species of animal that was once very common, but in the past 50 year nearly became extinct!

Introduce your student to an endangered species, Przewalski's horse, with this information sheet. They can color the illustration as they read.

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

Introduce your child to a fascinating new animal, the Baird's tapir. This is just one of many endangered species around the world.

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.

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