Chapter 8 - Planets, Moons, and Stars
Unit D - Weather and Space
- Chapter 8 - Planets, Moons, and Stars
What objects move through space, and how do they move?
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.
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!
Did you know Jupiter's Great Red Spot is really a 300-year-old hurricane that's twice as wide as Earth? Find out more awesome facts. Then celebrate your cosmic smarts with a solar system of cookies.
Try this on for size: If Earth were the size of your head, then Mercury would be an orange and Jupiter a small car. Size up the planets for yourself with a model scavenger hunt.
How much do you know about the Earth's little neighborhood within the vast universe? Take a virtual tour of our solar system to explore its many mysteries. Then put your new-found knowledge to the test.
Young Naturalist Awards Essay
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.
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.
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.
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.