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?

Right now the Earth is spinning, whether we can feel it or not. Do you know why? Uncover the science behind our spinning planet with this informative worksheet.

Every four years something funny happens with our calendars -- we add a day! Why do we do this? Discover the science behind leap year.

Aspiring astronomers, here is a wonderful introduction to the constellations! Your child can learn about Aries the ram with this worksheet.

How did salt ever get into the ocean? Find out how, and then try conducting your own salt water experiment.

Study the night sky with this hands-on science worksheet for third and fourth graders!

Look up into the night sky, and you may see three prominent stars side by side. This is Orion's belt, one of the most well known constellations!

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!

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.

Do you know why Mars is called the Red Planet? Find out that and more on this planet printable.

How do clouds form? Why does it rain? Help your student answer some of these questions by completing this water cycle worksheet.

Ready for liftoff? Take to the starry skies with this worksheet that explores the three basic types of galaxies.

Draw the phases of the moon in this earth sciences worksheet!

Share a star-gazing session with your little astronomer! This constellation chart is full of fun stories about the different groups of stars.

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

Learn a little about the constellation called Cancer the crab with this constellations worksheet.

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

Quite possibly the most famous constellation, the Big Dipper is a small part of Ursa Major, the big bear constellation.

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

Did you know fish could fly? Pisces, which is also a zodiac sign, is a constellation, named many years ago.

Constellations are not just named after animals, some of them are named after people! Learn about the constellation Sagittarius with this fun worksheet.

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

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

Scorpio, the scorpion, is one of the zodiac signs but you can also find him up in the stars at night!

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

Back in ancient times, before people knew what the stars were, they told stories about them! With this worksheet, learn about the constellation Cygnus.

Constellations are groups of stars that form a picture, usually with a story behind it. But many constellations are also zodiac signs, like Libra, the scales.

Before we knew what the stars were, people would often tell stories about the pictures that the stars formed. This one is called Aquila, the eagle!

Ever lay on your back to watch the clouds? With this cloud chart you and your little scientist can identify the different types of cloud formations.

One of the most famous and easy to spot constellations is the Big Dipper! Formally known as Ursa Major, this constellation was named after a bear.