Have you ever wondered why manhole covers are round? It's a good thing to know -- big companies sometimes ask that question in interviews.

Children copy the tracks of a frog, coyote, wild turkey, black bear, raccoon, and white-tailed deer in this nature-themed worksheet.

The Kansas State bird is the Western Meadowlark. First graders will learn fun facts and add color to the picture of this state bird.

Little space explorers can learn about the planet Neptune with this stellar coloring page! Help your child read some fun facts about Neptune as she colors.

Are you aware of how many endangered species there are in the world? Use this trivia sheet to test your knowledge of some beautiful but endangered animals.

Color in the Cardinal, the state bird of Kentucky, in this state bird coloring page. Make sure to use a bright red crayon to color in those famous feathers.

Who knew coloring could be so educational? Learn the formal names of a spider and calla lily with this coloring page.

Back in ancient times, the stars were used as storytelling tools. People created characters and stories that they saw in the stars, like Leo the lion.

The insect order Hemiptera consists of True Bugs such as Stainers, Assassin Bugs, Leaf-Footed Bugs, and this Boxelder Bug.

Pick up some peafowl facts on this worksheet with vibrant illustrations. Little ones will read about different types of peafowl and answer some questions.

The Wyoming State bird is the Western Meadowlark. First graders can learn fun facts and add color to the picture!

Meet the stratocumulus cloud, the kind of cloud that tend to gather in groups when a storm is on the way.

Learn about the California tiger salamander, which uses its toxic, bad smell as a defense.

This coloring page features a puffed up, spiky blowfish.

Your nature lover can learn the basics of drawing a tree with this simple step-by-step guide.

Learn about Yellowstone National Park's peregrine falcons, which survived heavy pesticide use in the 1960s.

Learn about the farthest planet in our solar system, Neptune. Facts include interesting bits about the vast winds that keep its surface moving!

The North Dakota state bird is the Western Meadowlark. Learn fun facts about this bird then add color to its picture to bring it to life!

Check out these state bird coloring pages, like the Indiana state bird, famous for its red color.

The Washington, D.C. state bird is the Wood Thrush. First graders can learn fun facts and add color to bring the picture of this bird to life!

This coloring page allows you to view a lionfish without fearing the touch of its venomous spines.

Get the facts on the beautiful elk, an American treasure and a symbol of Yellowstone National Park.

First graders can learn about the planet Venus and label its layers in this simple and engaging exercise!

Teach your child about prehistoric marine species with this trilobite coloring page!

Hop right into this simple worksheet to memorize grasshopper anatomy. Match the provided words to the body parts of this hip-hoppin' creature.

Encourage your little environmentalist to learn about composting! Children will boost their reading skills as they learn what compost is and how it helps the environment.

The Arkansas state bird is the mockingbird. Learn about the mockingbird and its habits in this Arkansas state bird coloring page.

Check out the unique appearance of the elephant fish in this coloring page.

Did you know that one of the main ingredients of a perfect pearl is dust? Learn all about the bizarre process behind every pearl with this science worksheet.

This lizard can grow to over six feet long! Color the Golden Spotted Monitor Lizard, one of several brand new species discovered between 2009 and 2011.