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

All living things come in different shapes and sizes. Help your little one determine which of these living things are BIG and which are small!

Both of these animals have big ears! Your child will look at the pictures of unusual animals in this worksheet and try to learn some new things about them.

Check out the big and bright sunfish in this coloring page.

Try out this simple worksheet diagramming the anatomy of a shrimp. Big words, small sea creature.

Having a pet is a big responsibility. Help your child decide which items he needs to help care for Casey the cat.

The emu: It's the second-largest bird in the world. How big is it? Let's just say that its eggs can be almost 9 inches long!

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

Ready to make a body outline? This seriously fun project will give kids some big insights into the important systems that make up their bodies!

Who feels at home scaling a nice, big tree? This word search is a fun way for your little one to familiarize themselves with different tree-climbing animals.

Have you ever seen a willow or a walnut tree? These big trees have very differently shaped leaves. Can you match each leaf with its correct tree?

Mammals come in all shapes and sizes - as big as a human or as small as a mouse! Learn about the life cycle of a mouse with this cut and paste activity.

Learn step by step how to create a report! Research facts about camels, complete the sentences, then use the sentences to create a report about camels.

Kids will cut out the various functions listed at the bottom of this kidneys and intestines worksheet and match them to the correct organ.

Do you know what's the largest parrot in Africa? It's the African grey parrot! Learn about this blabbering bird and give the image some color.

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.

When it comes to odd-looking animals, Australian goanna lizards probably take the cake. Kids will love coloring in this odd creature.

Learn all about Alexander Fleming, the man who invented penicillin and the happy accident that brought him to it.

Help your child learn what he we use our eyes for with this observation activity.

Where do animals live? All living things need homes. Help these animals get back home by following the maze.

Find out how scientists explain our yawns and use the graph to keep track of your family's yawns for a whole day!

Huge Carcharodontosaurus has a name to match his massive size! Delight your little dino lover with this fun dinosaur dot to dot.

Meet the residents of the Rocky Mountains with this set of finger puppets that features a cast of Rocky Mountain animals.

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

You have over 600 muscles in your body! Kids can try this muscle anatomy word search featuring 14 important muscles.