Looking for a quick reference about gravity and a definition for kids? This two page worksheet and activity has you covered!

This is the story of our solar system. Learn about the life of Nicolaus Copurnicas and his great discovery. Learn more by answering the question at the bottom.

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!

Learners will discover what heat waves are, and how they are connected to global warming, in this two-page earth sciences 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.

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.

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

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

Practice geology vocabulary with this challenging crossword puzzle.

This word search introduces your child to important rocks and minerals vocabulary, as it strengthens his attention to detail.

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.

Get swept up in this comprehensive worksheet about the awesome power of dust storms.

Invite spellers on an inter-stellar adventure with this fun word scramble puzzle.

Learn all about rivers--how they were formed, what they're made of, and what they do for us and the planet--in this reading and science worksheet.

Where do flower babies come from? Find the answers in this word search about plant reproduction!

Did you know that there are forests in the temperate ocean ecosystem? Learn all about the temperate ocean with this fun ecosystems sheet!

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

Learn a little about our planet with an Earth coloring sheet and find out more about our travels in to space by aswering the question at the bottom of the page!

Almost half of all known fish species call ponds, lakes, rivers, and other freshwater habitats home. Learn about freshwater fish in this worksheet.

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