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.

Discover some fun facts about the sun — and bring it to life with color — with this astronomy worksheet!

Teach your child how to respect the ecosystem with a science worksheet that doubles as a coloring page. Can they identify the sources of pollution in the scene?

What's better than coloring and learning at the same time? Here's a great informational sheet on koala bears that doubles as a coloring page!

Track down some of the most famous animals of the Amazon -- and other places -- with this rainforest coloring page that doubles as a life-science lesson.

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

Who is this Frankenstein guy anyway? He's not the monster -- he's the guy who invented him.

Dragonflies are some of the oddest looking insects in the world, so it's appropriate that they have so many unique characteristics. Read all about them!

In this science matching worksheet, children will test their solar system know-how by matching each celestial body to the correct fact.

The silverback gorilla is a special animal. This magnificent male is part of an endangered species. Complete this sheet to learn all about this gentle giant.

The California condor has been brought back from the brink of extinction. This worksheet will help your little bird lover learn all about the condor.

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.

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

Ancient mariners mistook the manatee for a mermaid! Your young biologist won't make the same mistake after learning about the manatee with this worksheet.

Did you know snowflakes are so unique, there are no two alike? Teach your child about how snow forms with this worksheet.

Can you figure out how the Triceratops got his name? Study this Triceratops fact sheet and see if you can guess.

Let your 1st grader color in the intriguing platypus and get a quick science science lesson too.

Jaguars eat deer? Wow. Alligators, too? Are you kidding? What don't they eat? There's way more to learn about these intriguing eaters in this cool worksheet.

In 2012, an 80 million-year-old dinosaur was discovered, and you can learn all about this 20-foot, 2-ton horned herbivore.

The horned lizard has a scary exterior but a gentle personality. Your little student can learn about this North American lizard with this worksheet.

Help your child learn about facts and opinions in this animal-themed worksheet! Students will read sentences and decide whether they express facts or opinions.

Children will learn important facts about food chains in these worksheets.

Give your budding chemist the facts and practice she needs for measuring with graduated cylinders.

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

Learn some new words and facts about precious minerals with this word-scramble and matching worksheet.