Did you know that ocean water is salty, but river water is not? Find out how fresh and salt water mix together in this water cycle worksheet.

Let your coloring skills blossom with this flower anatomy worksheet. Make your own flower, color and put your vocabulary skills to the test!

Discover some fun facts about the sun — and bring it to life with color — with this astronomy worksheet!

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.

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

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?

Does your learner ever wonder what makes the Earth dark at night and bright during the day?

Blast off into space with a fun planet printable. This one features Jupiter, the largest planet in our solar system.

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.

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.

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.

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?