Do you know the functions of the primary organs in the human body? Put your knowledge to the test with this fourth- and fifth-grade crossword!

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

Test your kindergartener's understanding of the parts of a dolphin with this adorable, fill-in-the-blank dolphin chart.

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

Learn all about the different jellyfish and then test your knowledge with the questions at the bottom of the page.

Guinea pigs are social animals that make great pets. Test your child's knowledge of these furry critters with this fun quiz.

Test your little nature-lover's knowledge about our feathery friends. Can she figure out which bird fits each description?

Here is a fun animal info sheet that doubles as a spelling exercise! Your child will learn all about the Golden Eagle, and complete a word scramble.

Analyze an axolotl with this kindergarten and first-grade worksheet!

Dive into habitat studies with this second- and third-grade worksheet!

Match baby animals with their parents in this kindergarten and first-grade worksheet!

See which snail has gotten the farthest with this 2nd grade measurement snail race worksheet.

Match each animal to its home in this first- and second-grade life science worksheet!

Take a trip down to the river with this second- and third-grade habitat worksheet!

Say hello to the red-eyed tree frog in this kindergarten and first-grade worksheet!

Bundle up and discover the animals of the tundra in this second-grade life science worksheet!

Discover what lives in the depths of the sea in this second- and third-grade habitat worksheet!

Kids find forest animals in this third grade science word search. Animal habitat worksheets help students learn about life forms in different environments.

Fifth-grade learners will look at a diagram of a cell, then follow the instructions to label its parts by color.

How do trunks, claws, and flippers help animals? Discover how animals use different parts of their body to meet their needs in this kindergarten and first-grade life science worksheet!

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

Have you ever wondered why giraffes have long necks or why lions have sharp teeth? Find the answers in this third- and fourth-grade worksheet about adaptations!

How could a fin, large ears, or sharp claws benefit an animal? Find out how body parts can help animals meet their needs in this engaging kindergarten and first-grade 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!

Dragonflies are some of the oddest looking insects in the world, so it's appropriate that they have so many unique characteristics. Read all about them!

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

Invite your kindergartener to fill out this elephant chart--testing her knowledge of an elephant's parts.

What's the animal that swims upstream? Help your child figure this out with this cold-blooded animal crossword puzzle worksheet.

Help your 2nd grader write out fractions in this underwater adventure.