Main content
Unit 1: Earth in space
400 possible mastery points
Mastered
Proficient
Familiar
Attempted
Not started
Quiz
Unit test
About this unit
Ready to blast off into the far reaches of the universe? In this unit, you'll learn all about Earth's place in the cosmos, explore the mysteries of galaxies and gravity, and take a grand tour of our very own solar system.
How did early astronomers explain the motion of the sun and stars?
The Milky Way: it's more than just a candy bar.
Practice
- Understand: galaxies and gravityGet 3 of 4 questions to level up!
- Apply: galaxies and gravityGet 3 of 4 questions to level up!
Earth isn't flat, but our solar system is.
Practice
- Understand: the solar systemGet 3 of 4 questions to level up!
Up next for you:
Level up on all the skills in this unit and collect up to 400 Mastery points!