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

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.

Try this worksheet diagramming a snail anatomy. It takes a snail over two minutes to travel 12 inches, but your 5th grader can finish this worksheet in no time.

Use clues to fill in the boxes in this crossword puzzle, and learn more about freshwater fish along the way.

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

Kids will cut out the various functions listed at the bottom of this kidneys and intestines worksheet and match them to the correct organ.

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!