Almost nothing in this universe can travel faster than light! Have some fun exploring the speed of light with this space science worksheet.

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.

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?

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.

Learn more about molecules and how they comprise the air all around us in this intro-to-earth-science worksheet.

A fun challenge for kids, this Earth Day crossword puzzle is a great way to review facts about the Earth and get a reminder on how to live green.

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

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!

Learn all about wildfires, a natural phenomenon looked upon with awe and caution.

Learn about the science behind one of nature's most awesome spectacles: monsoons.

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

Space enthusiasts will love learning about Freedom 7, the first manned American space mission.

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

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

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.

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?

If your student is stuck on Celsius, hand him this multiplication and division practice sheet.

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

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

Learn a bit about meteors, asteroids and comets as they travel across the night sky. Can your child round out the page by adding color to these orbiting rocks?

What is a plateau? What's the difference between a butte and a mesa? Look at these three land forms and learn to tell them apart with this worksheet.

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

Here's a great way to teach your kids more about our solar system. This worksheet focuses on the dwarf planet, Pluto.

What is Pluto? According to scientists... no, not quite. Find out more behind the answer to that age-old question.

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

Did you know that each tree tells a story? In this worksheet, children peer inside a tree to learn about the layers in its trunk.

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!

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

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

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.