Some people think alligators and crocodiles are the same, but there are some distinct differences. Check out this cool worksheet to learn what they are.

Explore the life cycle of a pumpkin with your kids with this colorful cut and paste growth chart.

What's a wombat? If you've got a kid learning life science, give her a fun introduction to animals with these wombat facts..

Learning about the functions of plant parts doesn’t have to be puzzling! Review the parts of a plant with this crossword for first and second graders.

What's your favorite animal? Kids love answering that question, and with this animal research graphic organizer, they can write all about it.

Ever wonder what's inside a camel's hump? Your child will become familiar with animals that live in the desert with this fun activity sheet!

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

Learn about bison, some of biggest creatures in Yellowstone National Park, or anywhere else for that matter.

Give students an opportunity to model how genes are passed down to offspring with the help of this Punnett squares worksheet!

Learn about the great horned owl of Yellowstone National Park, a bird so big and mean that it has the nickname, "tiger owl."

Which animals can live happily alongside humans? With this word search, match up game, fun facts, your child will learn more about urban animal habitats.

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

Explore the circle of life with this informative coloring sheet! Help your student color and learn the names of each stage of a butterflyÃs life.

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

Animal lovers can learn about sea creatures like sharks, tortoises and seahorses with this ocean habitat activity page, full of fun facts and a word search.

In this worksheet, students will read two different passages about the platypus. Kids will compare and contrast the passages, and identify the main ideas.

Learn about Yellowstone Park's lynx, the cats that put your average house cat to shame.

Learn about the stages of mitosis with this helpful biology handout!

Can your child name 10 animals that make their home in the mountains? After completing this worksheet, he'll know all about mountain habitats!

Label the parts of a tree with this simple science worksheet!

Learn about the human brain with this zombie-themed science worksheet!

Get a light lesson in the darkest of creatures, the raven.

Learn about the grizzly bears that live in Yellowstone National Park.

Explore the difference between natural and artificial selection with this engaging life science worksheet for middle grades!

Color in the gold and red colors of this common grasshopper species and learn about insect orders with your child!

Students learn about the relationship between the structure and function of cell walls and cell membranes in this engaging life science worksheet!

In this worksheet, children practice identifying animals of North America by their tracks.

Learn about the second fastest land mammal in the Western Hemisphere, the pronghorn antelope.

Learn about the badgers that live in Yellowstone National Park.

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