Invite budding naturalists to sharpen their observation skills with this colorful, printable scavenger hunt.

Pigs, cows, and ducks, oh my! The clues in this animal crossword puzzle worksheet will help you remember what animals there are on a farm.

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.

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

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

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

Read about Yellowstone's red foxes, some of the most cunning and smart animals around.

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

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.

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.

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

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

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

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 the amphibians and reptiles of Yellowstone National Park.

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

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

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

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

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

Think toads and frogs are the same? Think again! Check out this breakdown of the differences between the two, complete with a quiz to check your new knowledge.

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

Wolves are an animal with a bit of rough past in Yellowstone National Park. Learn all about them!

This word search is all about owls! Your child will learn a few different species of owl as he looks for them in the word search.

Read about the mule deer, the most abundant deer in Yellowstone National Park.

Learn about the black bears of Yellowstone National Park.

Children match animals to their ecosystems in this life sciences worksheet.

Facts about ostrich include that they are the largest birds in the world and that they can't fly, but that's not all. Learn all about this amazing bird!