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

Do you know which animal has two humps? Your child will use clues to determine what animal name fits in the crossword puzzle with this worksheet.

Ecosystems are an important part of fourth grade science. This fun printable will help your child with her knowledge of plants and animals.

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

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

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

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

Discover the details of desert plant life in this informative worksheet!

Have fun learning about food chains in this charming science worksheet!