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

Fourth and fifth graders will cut out and assemble a human skeleton from paper in this engaging life sciences printable.

These worksheets help kids understand food webs, an important part of the life science curriculum in fourth grade.

Review the different body parts with a fun crossword! This is a great way for your little doctor-in-training to review the basic organs and their functions.

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.

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

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

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.

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

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.

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

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!

For those of you studying human anatomy, here is a great diagram of the major organs in our body!

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

This diagram of a human skeleton is labeled with 12 major bones, from skull to fibula.

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!

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!

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

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

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