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.

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

Searching for a worksheet to help your fourth grader with science? This printable will help him practice astronomy vocabulary.

Did you know there are clouds in space? They are very different than the ones on Earth! Read a bit about nebula in this space science worksheet.

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

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

What's the difference between renewable and non-renewable energy? Help your student discover the various forms of energy we use each day.

A fill-in-the-blank exercise on tornadoes, made for fifth grade science students.

Teach your kids all about the second planet from the Sun with this simple science sheet.

Where to flower babies come from? Use this word search to learn about the different pollinators in our environment, and how they help spread plant seeds.

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?

Practice geology vocabulary with this challenging crossword puzzle.

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

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?

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!

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

How well does your child know the layout of our Solar System? This worksheet focuses on the biggest planet, Jupiter.

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

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

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.

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

How far away is the Red Planet from the sun? Find out with this great Solar System printable.

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

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

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.

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

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

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

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.