Our ecosystems need a protector; is your third grader up to the challenge? Identify harmful pollutants in a science worksheet that doubles as a coloring page.

Teach your kids all about the second planet from the Sun with this simple science sheet.

In this worksheet, children will learn about the intricate "waggle dance" honeybees use to communicate to each other.

Learn about the grizzly bears that live in Yellowstone National Park.

Take a look and learn all about this beautiful and rare tiger from the islands of Sumatra in Indonesia.

How many teeth does an alligator have? Find out with this fun worksheet, dedicated to teaching you and your child all about alligators!

Learn all about light refraction by simply placing your pencil in a glass of water. Warning: your pencil may not be quiet the same afterward.

This worksheet is all about the U.S. space mission of Friendship 7, and will help kids with reading comprehension and U.S. history knowledge all at once.

All kids love animals, but how much does your child know about them? Kids will get to learn some animal vocabulary with this wild crossword puzzle.

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

Learn how sand dunes form, and a little bit about desert formations like yardangs as well, in this science summary sheet.

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

Whether you say buffalo or bison, it is still the largest land mammal in North America. Discover a bit more about this majestic animal.

How much do you know about the U.S. national bird? Learn all about the bald eagle with this fun, informative worksheet!

Wedge your way into physics fun! You and your child can learn a bit about one of the six simple machines with this worksheet all about the wedge.

Searching for a worksheet that will give your kid help with his science skills? This printable will challenge his knowledge of the metric system.

Help your child practice his science skills with this science worksheet, which will challenge his knowledge of reptiles and ask him to solve a puzzle!

Searching for a worksheet that will help your child practice their reading skills? This printable uses life science as a background to help young readers.

Take a quick lesson in the otters that inhabit Yellowstone National Park and take an even quicker quiz.

Mmmm honey is delicious, but do you know how it's made? Take a dip into some sweet knowledge and find out the buzzy secrets behind honey.

Let your child put her thinking cap on and take a moment to write about the influence people might have had on the formation of landforms.

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

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!

Are cats trying to talk to us when they purr? Discover the meaning behind the purr in this worksheet that explores the three main types of cat purrs.

Scorpio, the scorpion, is one of the zodiac signs but you can also find him up in the stars at night!

How can an owl have long ears? Find out a few fun facts about the Long Eared Owl with an info sheet!

This is the story of our solar system. Learn about the life of Nicolaus Copurnicas and his great discovery. Learn more by answering the question at the bottom.

Can you guess how the Screech Owl got its name? Learn some fun facts about this species of owl with a fun info sheet!

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

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