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

Help your child practice her spelling and vocabulary with this fun worksheet! Discuss with your child what it means to be cold-blooded.

Sometimes measuring liquids scientifically is tricky. Give your budding scientist some practice, by reading measurements on graduated cylinder illustrations.

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

In which habitat could you find a blue whale, a squid, and a shark? The ocean, obviously! Have your kid find ocean animals with this word search worksheet.

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

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

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.

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.