This reading comprehension worksheet focuses on Brazil's incredible natural resources, targeting both Earth science and language arts.

For all you aspiring astronauts, here is a worksheet for learning the constellations! Learn all about the constellation Gemini with this sheet.

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.

Dig into the past with this third-grade worksheet all about fossils!

This worksheet teaches all about the planet Saturn and its placement in the Solar System.

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

Did you know "Delphinus" is Latin for "dolphin"? Learn all about this cool constellation with this worksheet!

Confused about continents? Get better acquainted with all the continents on earth with this word scramble.

Did you know that before they were zodiac signs, characters like Taurus the bull were all constellations!

This helpful worksheet lays out all the qualifications for planethood. A great way to start studying outer space science!

What does the Earth look like? Find out all about the nooks and crannies that cover the planet with this landforms worksheet.

Peel back the layers of the earth in this earth science worksheet. Can you name all of them?

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

Cave formations come in all kinds of shapes and sizes; get the scoop on common cave formations with this two page printout with a maze and vocabulary.

Looking for a way to teach your kids all about the planets? This worksheet is the way to go. It features Venus, the second planet from the sun.

Nature is all around us! But how much does your child know about our natural world? Test her knowledge with some nature fun-facts trivia.

How do the Sun and the Moon interact with the Earth, and how do all three depend on one another? Find out in this science worksheet.

On this worksheet, kids learn all about the look and location of Uranus, and they get to cut out a picture to use in their own Solar System diagram.

What happens to water as it travels through mushy, smushy wetlands and swamps? Find out all about the water cycle and fill in scientific terms in the swamp.

From glaciers to mountains to wetlands, our planet has lots of different landforms. Help your child learn all about them with this fun earth science crossword.

Have you ever looked into the night sky and wondered where all those millions and million of stars come from? Find out here with a mini astronomy lesson!

Here's a great worksheet for teaching your kids all about the planet Mercury. Did you know that it's the smallest planet in our solar system?

Did you know that Uranus can get as cold as -144° Fahrenheit? Learn more about the third largest planet in our solar system on this planet printable.

A fun challenge for kids, this Earth Day crossword puzzle is a great way to review facts about the Earth and get a reminder on how to live green.