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

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

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.

That's not a lake... it's a crater! Get the scoop on some of the world's most well known craters with this space science worksheet.

How do you think our universe will end? With this worksheet, explore some of the common theories, and then come up with some of your own!

What is Pluto? According to scientists... no, not quite. Find out more behind the answer to that age-old question.

The infamous Halley's Comet only comes around once every 75 years or so! Read some interesting info on the world's most famous comet.

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.

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

Discover how cover crops enrich soil and support healthy crop growth with this research-based worksheet for fourth and fifth graders!

Discover how water flows in this informative environmental science worksheet!

Learn about some of the major U.S. watersheds in this fascinating science and geography worksheet!

What happens to water after it rains? Learn about the stages of the water cycle in this colorful worksheet!

Water covers 70% of Earth’s surface—but where exactly is it? Find out in this fifth-grade worksheet!

Discover Earth’s four major systems, or spheres, in this engaging fifth-grade worksheet!