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?

There are lots of stories around the world for the rabbit moon: a rabbit image seen in the shadows on the moon's face. Here's one for young moon-gazers!

Third grader today, astrophysicist tomorrow! Let your child research their planet of choice, and discover everything from the number of moons to temperature.

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.

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.

Learn Saturn facts with this science printable, like that it is one of the large gas planets in our solar system!

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.

This worksheet is a quick-reference tool of space vocabulary for kids, with an exercise to use the words properly in provided sentences.

What is the Earth? Here is a reading passage and a word search to help your kid get acquainted with Earth science.

How was our solar system created? Read a bit about one of the most well-known theories in this worksheet about the Big Bang.

Get to know your Jurassic from your Cretaceous in this handy geologic time periods chart.

This printable features the planet closest to the sun. Learn Mercury facts and further your knowledge of outer space by discovering new things.

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

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!

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

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

This worksheet features Uranus facts. Did you know this planet is blue and spins on its side?

Children get to know a few geology terms in this landform word search puzzle.

Do you know how Tsunamis are formed? This worksheet shows the physics behind tsunami formation.

This worksheet features a scientific explanation and awesome photos of solar eclipses, which are extremely rare scientific phenomena.

Learn what distinguishes a meteoroid, meteor and meteorite with this outer space science sheet!

Launch into learning with this worksheet on Gemini 4, one of the original missions in the early days of the U.S.'s space program.

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.

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