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

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

Dive deep into your body's circulatory system with this worksheet on blood and what it's made of.

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

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

Expand your sea creature vocabulary with this Life in the Reef worksheet!

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!

Test your knowledge of prehistoric animals with this life sciences crossword puzzle!

This worksheet will quiz your child on the different fields of study in science. What's the difference between a zoologist and a geologist? Find out here!

For your budding environmentalist, here is an information sheet on a well-known endangered species, the Komodo dragon!

Does your child love dogs? Test his knowledge on the different breeds of dog with some trivia questions!

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

Have you considered why elephants have trunks, or why polar bears have thick fur? Reflect on animal adaptations with this fourth-grade worksheet!

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

Study ecosystem changes with this drought-focused worksheet for fourth and fifth graders!

Challenge your child' memory skills with this colorful worksheet. This fun printable will help with memorization skills and spatial awareness.

Get familiar with this food chain pyramid, from carnivores and herbivores to producers and decomposers; each group has a role.

Take a peek into a temperate forest ecosystem with this food web worksheet for fourth and fifth graders!

Did you know plants make their own food? Discover how with this fill-in-the-blank worksheet for third and fourth graders!

Can you identify the difference between inherited and acquired traits?

Looking for a worksheet to help your kid with science? This printable will help him with human anatomy and vocabulary.

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.

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

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

These 12 dinosaur names are all mixed up, and need a dinosaur expert to help unscramble the letters.

This fun worksheet is jam-packed with fun facts, a word search and trivia questions, all about the baboon!

This multi-page worksheet provides an opportunity for kids to practice both their understanding of food webs and their reading comprension skills.

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

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