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Chapter 9 - Astronomy

earth_science

Unit D - Astronomy, Weather and Climate

Chapter 9 - Astronomy

Learn more about the Earth, the Sun, the Moon and how our Solar System formed. Meet astronomers, conduct an interview with Mars, and investigate whether or not the moon rotates on axis.

Stargazing

Hands-on Activity

Stargazing

There are thousands of stars in the night sky. Hidden among them are constellations and planets. How many can you find? Record your sightings in a stellar sky journal.

What-s-the-Big-Idea-About-Astronomy

Story

What's the Big Idea About Astronomy?

Huge distances, gigantic sizes, and long periods of time—astronomy is a BIG subject. We've brought learning about it down to size with this look at the big ideas you need to know. 

What-Do-You-Know-about-Astronomy

Interactive

What Do You Know about Astronomy?

How much do you really know about our place in space? Test your astronomy knowledge with this interactive quiz. Don't worry, there's no grading—just a helpful look at the answers when you're done! 

An-Interview-with-Mars

Hands-on Activity

An Interview with Mars

Join forces with Stella Stardust to create a red-hot interview of the red planet. As Mars, you can proudly tell the world about being home to the largest volcano in the solar system. 

Mars-Past-Present-Future

Young Naturalist Awards Essay

Mars: Past, Present, Future

In the early 1900s, some astronomers believed that the color contrasts on Mars' surface were great oceans. Today we know they are huge dust storms. Track how our knowledge of Mars has changed with this seventh-grader.

3d-universe_thumb

Article

The 3-D Universe

A 2-D map is a great guide here on Earth—and virtually worthless for finding your way around in outer space. Take a 3-D look at mapping our solar system and universe.

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