Ancient mariners mistook the manatee for a mermaid! Your young biologist won't make the same mistake after learning about the manatee with this worksheet.

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

Learners will get to know the bald eagle, the national bird of the United States and an inhabitant of Yellowstone National Park.

Learn about the plants and animals that make deciduous forests their home, then complete the crossword puzzle.

There are some parts of our brains that are still too complicated for scientists to understand! Find out the basics of the brain's functions with this fun page.

Learn about pearls, which seem like normal jewelry from a factory but are actually made from the mucus of mollusks!

Flex your mind muscles with a body science worksheet! Your child will learn the fundamentals of what makes up our muscles.

In this worksheet, children will learn about the intricate "waggle dance" honeybees use to communicate to each other.

Did you know that each tree tells a story? In this worksheet, children peer inside a tree to learn about the layers in its trunk.

The food chain is an important life science concept for fouth graders. This game makes it fun to learn!

The grizzly bear once roamed across most of North America; now its habitat has shrunk to the northwest. Discover more about the grizzly with this worksheet.

Test your third grader's biology knowledge with this worksheet, which challenges him to separate invertebrates from animals with a backbone.

An energy pyramid is a simple way to graphically show how energy flows in an ecological community; somewhat similar to the food pyramid.

These 12 dinosaur names are all mixed up, and need a dinosaur expert to help unscramble the letters.

Did you know that your tongue is one of the strongest muscles in your body? Tickle your learning taste buds with this worksheet all about your tongue.

Learn the ins and outs of one of the body's most important organs: the heart!

Budding biologists can learn all about human digestion with this information page, complete with a diagram of the digestive system.

Crossword puzzles are a great way to make life science learning fun. This one's all about natural selection, and it's sure to give your child a fun challenge.

Coyotes' famous howl gave them the nickname "song dogs." This is just one of several coyote facts your child can learn from this worksheet.

Get the facts on the beautiful elk, an American treasure and a symbol of Yellowstone National Park.

Are cats trying to talk to us when they purr? Discover the meaning behind the purr in this worksheet that explores the three main types of cat purrs.

In which habitat could you find an arctic fox, a polar bear, and a snowy owl? Have your kid find tundra animals with this word search worksheet.

Take a peek inside the human eye with this eye-catching worksheet! See a simple eye diagram and learn vocabulary words that will help your kid understand sight.

Lots of people like turtles, but how much do you really know about them? Get to know one of many types of turtles with this informational worksheet.

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!

Which comes first, genus or phylum? To complete this life science crossword, kids need to put the 9 levels of biological classification in the correct order.

For your budding environmentalist, here is an information sheet on a well-known endangered species, the Komodo dragon!

Did you know some baby birds take 10 days to hatch, and some can take 80 days! Learn all about these cute creatures and finish your lesson off with a fun maze.

Go from a butterfly beginner to an expert with this worksheet, full of pretty butterflies and tons of information about where butterflies live.l

Jaguars eat deer? Wow. Alligators, too? Are you kidding? What don't they eat? There's way more to learn about these intriguing eaters in this cool worksheet.