Discover the many different kinds of conifer and deciduous trees as you complete this word search!

Just like people, animals have babies that grow up into adults. On this worksheet, Kids draw a line to match each baby with its adult version.

Discover the symbiotic relationship that helps this angler fish find his next meal!

Check out the alligator gar's huge jaw, and color it in!

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

Did you know that insects like dragonflies have life cycles that are very similar to our own? Help your little scientist get to know the circle of life.

Introduce your child to the animal kingdom's most famous anomaly, the platypus! Color and learn about the platypus with this great info sheet.

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

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

This spikey Stegosaurus looks fierce, but don't worry -- he's a vegetarian! Learn all about this massive dinosaur with a fun fact sheet.

The grizzly bear once roamed across most of North America; now its habitat has shrunk to the northwest. Discover more about the grizzly with this worksheet.

Did you know butterflies have no teeth? How do you think they eat? Check out this science worksheet to learn all about it.

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

These pictures have a lot to say! The animals in this worksheet don't talkÃbut they can tell you a lot about what they're like by the way they look.

As kids cut and pastes the pictures in the right places on this life science sheet, they learn a little about the process lettuce goes through as it grows.

Download this worksheet for answers to our animal reading comprehension series.

Coyotes' famous howl gave them the nickname "song dogs." This is just one of several coyote facts your child can learn from this worksheet.

Did you know some people have little teacup pigs as pets? Learn all about these adorable animals with your child as she completes this fact-filled quiz.

When we get embarrassed or anxious, and all of a sudden our cheeks get red! Why does our body do this? Find out what scientists think blushing is all about.

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 about Red River Hogs in this series of animals facts sheets and coloring pages in one.

Learn about the badgers that live in Yellowstone National Park.

Count the number of sea creatures and make a bar graph with this shark worksheet. Make an underwater word ladder with your 2nd grader, too.

Bird-watchers will love this worksheet, featuring just a sample of the many song birds flying around Yellowstone National Park.

This Lily and Dragonfly coloring page will engage second graders in a fun coloring exercise while helping them learn the scientific names of the species.

All living things go through many changes as they grow to be adults! Help your little one understand how he will grow and change.

Plants may not have feet, but they do move! Help your child learn different ways seeds travel.

Lots of people like turtles, but how much do you really know about them? Get to know one of many types of turtles with this informational worksheet.

The olm is a blind salamander that lives in Europe. Kids will learn how pictures help illustrate concepts with this life science worksheet.

Grandma and grandpa didn't always have gray hair. Find out about what gives our hair color and what makes our hair lose that color as we get older.