Learn about the integumentary system, which is really just a fancy phrase for "skin", in this worksheet.

What happens to our food after we swallow it? Chomp on some body science with this diagram of the digestive system.

Use this heart anatomy sheet to learn all about your heart and how it works.

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

Learn more about the animals in the swamp food chain, and find out how each living thing in a swamp ecosystem needs another to survive.

Budding botanists can master the different parts of a seed with this helpful diagram!

Learn more about the mysterious brain and how it works with this brain anatomy worksheet.

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

Did you know that invertebrates don't have backbones? Find out some different types of invertebrates with the clues in this crossword puzzle.

Get to know your genes with Steve the savvy scientist! Genes help determine everything from your hair color to your height.

Dive deep into your body's circulatory system with this worksheet on blood and what it's made of.

There's a lot happening beneath the waves, including the ocean food web. Take a closer look with this colorful printable.

Learn more about the skin (and the science behind pimples -- ew!) in this printable life science diagram.

Cranium, noodle, melon, noggin...the human skull has been called a lot of things over the years. Here are the proper names for each part.

This multi-page worksheet provides an opportunity for kids to practice both their understanding of food webs and their reading comprension skills.

This skeletal system worksheet, featuring a funny diagram of a human skeleton, is just the thing kids need to master their skeletal system vocabulary.

Children will learn important facts about food chains in these worksheets.

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

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.

This Awesome Anatomy coloring page is all about the human eye, and makes a handy study tool as well!

A useful overview of terrestrial biomes, including a climate key.

Studying the human body? Get to know your body inside and out with this muscle diagram.

Color in this Awesome Anatomy page on the respiratory system and learn about how we breathe!

How cool are chromosomes? Read what Steve the savvy scientist has to say about chromosomes and genes before testing your knowledge with some fill-in-the-blanks.

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 the many different biomes the Earth is home to in this life science worksheet, which holds the answers to some simple life science questions.

How does blood flow through the heart? This worksheet prompts kids to map how blood is pumped through this sophisticated organ.

Cut out and complete this trophic level pyramid template!

Learn more about what lives--and what thrives--in marshes with this fill-in-the-blank worksheet on marsh ecosystems.

Ever wonder how the human body functions? Enjoy this great info sheet all about the human heart, one of our most important organs.