This is the story of our solar system. Learn about the life of Nicolaus Copurnicas and his great discovery. Learn more by answering the question at the bottom.

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

Learn the importance of natural adaptations with this inquisitive activity!

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

This nonfiction passage helps kids develop reading comprehension skills, as well as learn important ecological facts.

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

Learn more about two kinds of aquatic biomesÃfreshwater and saltwater biomesÃand how you can tell them apart.

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

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

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

Open your ears for some interesting science! Your little biologist will learn the basic parts of the ear with this diagram.

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

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

Cells are the building blocks of all living things! Help your little scientist learn the basics of a cell with this fun activity.

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

Learn all about the ooey-gooey areas of land called wetlands that provide a home for certain kinds of plants and animals.

How much do you know about the U.S. national bird? Learn all about the bald eagle with this fun, informative worksheet!

Animal lovers, get acquainted with a very unique species, the okapi! Read this info-sheet to learn about why this animal is endangered.

Roses are red, violets are blue, I know the parts of a flower, how about you? Learn about flower anatomy with this worksheet.

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.

Did you know chameleons can sleep upside-down? Learn more about chameleons with this fun worksheet, jam-packed with fun facts and activities!

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!

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.

Learn step by step how to create a report! Research facts about camels, complete the sentences, then use the sentences to create a report about camels.

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 all about your body's most important muscle: your heart! This simple diagram is a great way to introduce your little biologist to his heart.

Help your child read this page about the Sumatran rhinoceros, where they can color an illustration as they learn about why this animal is endangered.

Children learn about the food cycle in a rain forest as they color in a scene of snakes, butterflies, leopards, and other forest-dwelling creatures.