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.

Dig in to the layers of the earth with this science coloring page!

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.

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

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?

These "Dig It!" worksheets not only teach about life on earth, they teach the scientific method as well.

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?

Aspiring astronomers, get ready for a stellar coloring page all about the moon! Your child can read some fun facts as he colors.

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

What's in the ground beneath our feet? Explore the science of soil with your child using this handy printable!

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.

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.

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.

What is water energy? Also known as hydro power, water energy is one of our important renewable resources!

It's easy being green when you have our Earth Day game for a guide. Just print out this Earth Day game and get ready to score one for the planet.

Challenge your science student to record a shadow over the course of a day and make the connection between shadows and the time of day.

Kids will learn about fossils in this worksheet. Help your child learn about the scientific method by getting him to examine a fossilized dinosaur skeleton.

Use this fossils worksheet to help a child learn about life on earth. Your child will learn about evolution and extinction, and also form a hypothesis.

This Earth Day quiz family and friends with this true or false questionnaire. It's all in good, informative, fun!

Here's an introduction to different types of rocks.

Studying earth science? Learn about the different types of clouds with the series of cloud types.

What is biomass energy? Learn about an important form of renewable energy with this colorful worksheet.

Find a definition of what "natural resources" are, and complete the natural resources word search. It's a good vocabulary warm-up!

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