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

Do you know how clouds form? Get the basic idea of how moisture in the air can become a cloud.

Do you know how tornadoes form?This science worksheet diagrams what is known about what causes tornadoes to form.

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

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.

Our solar system has hundreds of moons! Read a bit about how a moon is formed with this lunar lesson.

Learn more about the imposing tsunami with this worksheet about the science of tsunamis.

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.

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

Explore one of the great mysteries of the universe with this space science worksheet on black holes.

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.

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

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

Use this lightning diagram to go along with what your child is learning about weather systems in school!

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.

Get to know your Jurassic from your Cretaceous in this handy geologic time periods chart.