Unit 2: The Earth-sun-moon system
400 possible mastery points
About this unitIn this unit, you'll explore the inner workings of the Earth-sun-moon system. Discover the secrets of our seasons, learn why the moon waxes and wanes, and find out what causes the stunning spectacle of a solar eclipse.
Can't see the moon at night? Don't worry, it's just a phase.
Make science come alive in your classroom with free hands-on investigative activities aligned to middle school NGSS standards.