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.

Learn a bit about meteors, asteroids and comets as they travel across the night sky. Can your child round out the page by adding color to these orbiting rocks?

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

Here's a stormy science adventure that will blow your socks off! Learn about tracking hurricanes with this map of coordinates.

Learn facts about Venus, the planet that shines the brightest in our night sky! Then practice your knowledge of the solar system with bonus trivia at the end.

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

Learn about the "dwarf planet" in our solar neighborhood. There are more Pluto facts to learn, if you figure out the answer to the question on the page.

Learn facts about Mars, the great red planet in the night sky. There is more find out about space by answering the question at the bottom of the worksheet.

Let your child explore the vocabulary associated with Earth's landforms with this colorful word search.

Kids can explore ideas of storytelling and science as they fill in this comparison grid with their opinions. Start a conversation of ideas with this worksheet!

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.

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

Learn Jupiter facts in this worksheet. Your child can test his knowledge of the solar system by answering the trivia question at the bottom of the page.

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

Looking for a fourth grade worksheet to help your kid with astronomy? This printable will help him learn the relative sizes of planets.

Looking for a worksheet to help your kid with science? This printable will help him with his knowledge of geology.

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!

Explore the science behind how hurricanes are forecasted with this two-page environmental science worksheet!

Invite students to explore the cause and effect of earthquakes with this two-page environmental science worksheet!

Continents collide in this earthshaking science worksheet!

Help third and fourth graders become rock stars with this informative geology worksheet!

Earth has many different land and water features—can you recognize them? Test your knowledge with this crossword puzzle for third and fourth graders!

Discover the phases of the moon with this third- and fourth-grade space science worksheet!

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!

Learn about the identifying characteristics of the four main types of air masses in this informative science worksheet!

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

Study the night sky with this hands-on science worksheet for third and fourth graders!