First graders can learn all about the sun by reading the facts then using what they've learned to label each layer of the sun.

Did you know that there is no new water on Earth? It all gets recycled and reused in a process that we call the water cycle.

Almost half of all known fish species call ponds, lakes, rivers, and other freshwater habitats home. Learn about freshwater fish in this 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.

Help your child improve his handwriting skills with this printable worksheet, which is all about the four seasons.

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!

You can find rocks almost anywhere, but there's a lot more to rocks than meets the eye. Check out this science worksheet to learn all about rock formations.

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?

Ever lay on your back to look at the clouds? Now you'll know which types of cloud make up all those silly shapes you see with this diagram.

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.

Help your child learn weather words with this climate-themed word search.

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.

In this word scramble, children solve a riddle by identifying which things are made of plants and which are not.

Searching for a worksheet to help your fourth grader with science? This printable will help him practice astronomy vocabulary.

Take a look into the layers of the earth with this soil science sheet! Your little digger can learn about the different soil layers and what lives in each one.

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

What is Pluto? According to scientists... no, not quite. Find out more behind the answer to that age-old question.

Life on Earth is vast and varied, from high in the sky to the bottom of the sea. Learn more about what lives on Earth with this reading and quiz worksheet.

If Dorothy had lived a little further south, she might have been swept away to Oz by a hurricane.

With this diagram, kids can find out more about oil, one of our most widely-used natural resources, and learn a little more about where it comes from.

First graders can read the information about Mercury then label each layer of the planet using what they've learned.

How do you think our universe will end? With this worksheet, explore some of the common theories, and then come up with some of your own!