Help kids understand the size and scope of billions of years with this helpful reference worksheet.

Have you ever wondered why giraffes have long necks or why lions have sharp teeth? Find the answers in this third- and fourth-grade worksheet about adaptations!

Find out all about the different parts of the eyes and how they work together to make vision possible.

Find out everything you need to know about lightning rods! These metal poles have quite a special relationship with lightning.

How much do you know about the U.S. national bird? Learn all about the bald eagle with this fun, informative worksheet!

How much do you know about our home planet? Boost your Earth knowledge with this science printable.

How much do you know about man's best friend? This fun worksheet is jam-packed with fun facts about dogs!

How much do you know about our solar system's planets? Kids learn facts about Neptune in an out-of-this-world worksheet.

Lots of people like turtles, but how much do you really know about them? Get to know one of many types of turtles with this informational worksheet.

This solar system worksheet guides your child through the order of the planets. Use this solar system worksheet to learn about the planets in the Milky Way.

Mmmm honey is delicious, but do you know how it's made? Take a dip into some sweet knowledge and find out the buzzy secrets behind honey.

How much do you know about the Snowy Owl? Learn a few fun facts about this species with a fun sheet, including a dot to dot!

This moon phases worksheet offers a clear explanation of the lunar cycles. To teach your student the phases of the moon, download now!

Rainbows look like swipes of brightly colored paint hanging in the sky. Have you ever wondered how they got there?

How much do you know about our national bird? Enjoy an info page about the bald eagle, with a mini crossword, some fun facts and a picture to color.

Why do some desert animals have large ears? Why do others have scales? Learn the answers to these questions and more with this life science worksheet!

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.

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.

How much does your child know about the animal kingdom? Help her discover interesting facts with this animal crossword.

Roses are red, violets are blue, I know the parts of a flower, how about you? Learn about flower anatomy with this worksheet.

Find out how scientists explain our yawns and use the graph to keep track of your family's yawns for a whole day!

Glass is everywhere, but have you ever wondered where it all came from? It doesn't grow anywhere -- we have to make it!

Learn about how the Earth was formed in this science worksheet that covers the early years of the Earth.

Let your curious kid learn a little bit about how fireworks work in this summer science sheet.

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

Did you know plants make their own food? Discover how with this fill-in-the-blank worksheet for third and fourth graders!

Without rain, we wouldn't have any puddles to splash and stomp in. Does your third grader know why and how rain falls from the clouds?

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.

All kids love animals, but how much does your child know about them? Kids will get to learn some animal vocabulary with this wild crossword puzzle.

Discover the impact of water on Earth’s landscape with this fourth-grade erosion worksheet!