What is the Earth made of? Find out everything that goes on just below the surface in this science reading worksheet.

Do you know what's the largest parrot in Africa? It's the African grey parrot! Learn about this blabbering bird and give the image some color.

What is wind energy? Teach your students how we can use the wind to create electricity!

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.

Children learn why the light from the sun seems white to us, why we see objects in color, and why the sky is blue in this beautiful and fascinating worksheet.

The animal names on this third grade science and spelling worksheet are all mixed up! Kids unscramble reptile and bird names to complete the worksheet.

Which animals can live happily alongside humans? With this word search, match up game, fun facts, your child will learn more about urban animal habitats.

Ready for a truly electrifying lesson in science? Find out how electricity forms and what makes a lightning bolt!

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

This colorful diagram is a handy reference guide for kids learning basic body systems.

This worksheet features Mercury, the smallest planet in our Solar System, and also the planet that's closest to the Sun.

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.

Did you know that light could bounce? Set up a light obstacle course with a few mirrors and watch light bounce around your room.

How far away is the Red Planet from the sun? Find out with this great Solar System printable.

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!

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.

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

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?

Milky Way: candy bar or galaxy of 100 to 400 billion stars?

How well does your child know the layout of our Solar System? This worksheet focuses on the biggest planet, Jupiter.

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

Here's a quick overview of drought and flooding to spark thoughts or conversation with your kids about water.

Encourage your little environmentalist to learn about composting! Children will boost their reading skills as they learn what compost is and how it helps the environment.

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

When we get embarrassed or anxious, and all of a sudden our cheeks get red! Why does our body do this? Find out what scientists think blushing is all about.

This word search introduces your child to important rocks and minerals vocabulary, as it strengthens his attention to detail.

Grandma and grandpa didn't always have gray hair. Find out about what gives our hair color and what makes our hair lose that color as we get older.

Let your kid's knowledge of leaf vocabulary climb as high as a tall, tall tree with this fun word search.

Here's an introduction to different types of rocks.

During the Gold Rush, people weren't sure if they found gold or something else, and these easy steps would help them be sure.