This Earth Day quiz family and friends with this true or false questionnaire. It's all in good, informative, fun!

Here's an introduction to different types of rocks.

Ever wonder what's inside a camel's hump? Your child will become familiar with animals that live in the desert with this fun activity sheet!

What does a seal eat? Kids choose the pictures that show what kind of food each animal likes to eat in this first grade life science worksheet.

Let's talk about trees! Help your child use Earth Day as an excuse to praise the woody perennials that hardly ever get the recognition they deserve.

Studying earth science? Learn about the different types of clouds with the series of cloud types.

Colorado's state bird is the Lark Bunting, and you can learn all about it with this coloring page.

Learn all about rivers--how they were formed, what they're made of, and what they do for us and the planet--in this reading and science worksheet.

Looking for a fourth grade worksheet to help your kid with astronomy? This printable will help him learn the relative sizes of planets.

The Alaska state bird is the Willow Ptarmigan, also known as the Willow Grouse. First graders can learn fun facts and add color to the picture of the bird!

Wind has its own unique properties that help shape the weather. Give your little scientist a heads up with these wind facts!

If your kid loves the ocean, he may enjoy learning tons of trivia about our fishy friends in the sea. Brush up on your fish facts with this fun page!

What is biomass energy? Learn about an important form of renewable energy with this colorful worksheet.

Find a definition of what "natural resources" are, and complete the natural resources word search. It's a good vocabulary warm-up!

This printable features the planet closest to the sun. Learn Mercury facts and further your knowledge of outer space by discovering new things.

This worksheet features a scientific explanation and awesome photos of solar eclipses, which are extremely rare scientific phenomena.

Learn your clouds with this coloring series of cloud types that merges science with coloring fun.

Use this cool 2-page worksheet to make your own big dipper clock!

Meet Michael Faraday, the inventor of the first electric motor. Without Faraday, who knows if we would even have working cars, airplanes or even clocks!

If you're looking to color a chimpanzee, you won't find a coloring page better than this one. Learn some facts about these animals while you're at it.

Does your child have a knack for astronomy? Teach him about the constellations with this great worksheet.

Children work on pattern-spotting and observation skills as they determine which of these six type of creatures is a bird.

Pick up some facts about squids, including about the fascinating Giant Squid, and do a bit of writing on this reading comprehension worksheet.

Many legends told by ancient people have characters that you can find as star formations called constellations! This one is Andromeda.

Help your second grader understand the different types of weathering and how they can affect the earth.

Space enthusiasts will love learning about Freedom 7, the first manned American space mission.

This worksheet tests kids' understanding of basic heredity by asking them to match parent turtles with their offspring based on similar traits.

Meet the Carolina Wren, a small bird that lives in the deep south of the U.S. and as far south as Central America.

Fact: This worksheet is about unusual animals from all over the world. Opinion: This is the best fact and opinion worksheet ever!

Dig up some earth science learning with this printable, and turn your next hike or beach excursion into a lesson in soil science!