Are chickens mammals, fish, or birds? Sort animals by their traits in this informative life science worksheet!

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

With this animal fun page, your child will read a few fun facts about the Great Gray Owl, and complete a crossword based on what he's learned.

Bug out on some insect anatomy! Can you name each part of the insect? Try making an educated guess by using what you already know about animal body parts.

Put your kid's observational skills to the test with this word search that will help her learn some of the animals that inhabit a rainforest.

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.

In which habitat could you find an arctic fox, a polar bear, and a snowy owl? Have your kid find tundra animals with this word search worksheet.

Why do some desert animals have large ears? Why do others have scales? Learn the answers to these questions and more with this life science worksheet!

This worksheet helps kids understand variations in animals and how the same kind, or species, can sometimes look different from each other.

These Valentine's Day cards will be the oddest and most unique cards your sweetie ever got!

What has two legs and carries its baby in a pouch? Fill in this crossword puzzle and learn some fun facts about two-legged creatures!

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

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!

Discover the animals and plants of the past in this fossil-focused worksheet!

Read about one of Yellowstone National Park's coolest animals, the big horn sheep.

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

There aren't many blue animals out there, but here's one that will be fun to color: the blue dart frog. Its bright color warns predators that it is poisonous.

Help your child learn about facts and opinions. Kids will read statements about animals before determining whether each statement is a fact or opinion.

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