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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.

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!

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

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

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

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

Learn all about the science of the movies and the basic concepts behind how they work.

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

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

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

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!

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

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

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

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

There are many endangered species all around the world. Read about the Amur leopard and why it's endangered with this information page.

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.

Go from a butterfly beginner to an expert with this worksheet, full of pretty butterflies and tons of information about where butterflies live.l

Are you afraid of spiders? Don't scream, this fun worksheet is jam-packed with interesting facts and activities, all about black widow spiders!

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

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

Pheww! What is that stinky smell? This fun worksheet is jam-packed with fun facts, a word search and trivia, all about skunks!

How many teeth does an alligator have? Find out with this fun worksheet, dedicated to teaching you and your child all about alligators!

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!

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.