Renewable energy is extremely important for the Earth's future! Test your child's knowledge of renewable resources with this review sheet.

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?

Discover Earth’s different spheres with this fourth- and fifth-grade earth science activity!

Discover the impact of water on Earth’s landscape with this fourth-grade erosion worksheet!

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 features Mercury, the smallest planet in our Solar System, and also the planet that's closest to the Sun.

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

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

What is the water cycle? We're glad you asked! Learn about this amazing natural system that's been working for billions of years.

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

This worksheet will quiz your child on the different fields of study in science. What's the difference between a zoologist and a geologist? Find out here!

Did you know the surface of the Earth is always changing? Learn about the events that change Earth's surface with this crossword puzzle for second and third graders!

Have you ever wondered what keeps the moon in orbit? Newton's first law gets a quick introduction, too, in this worksheet for kids. Check it out!

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.

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

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

Review the rock cycle with this second-, third-, and fourth-grade crossword puzzle!

Dive into the deep, vast world of ocean science with this introductory sheet on the world's different oceans.

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!

Right now the Earth is spinning, whether we can feel it or not. Do you know why? Uncover the science behind our spinning planet with this informative worksheet.

Blast off deep into space with this science worksheet featuring the dwarf planet, Pluto.

Get to know the Apollo 11 space mission in this science and history worksheet!

Draw the phases of the moon in this earth sciences worksheet!

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

Does your little gardener know about compost? Test their knowledge of this sensationally smelly earth science process!

Here's a quick overview of drought and flooding to spark thoughts or conversation with your kids about water.

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

What is the Earth made of? Find out everything that goes on just below the surface in this science reading worksheet.

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

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