CK-12 Foundation
Ck 12: Fifth Grade Science: Earth Science: The Sun Earth Moon System
[Free Registration/Login may be required to access all resource tools.] Discusses solar and lunar eclipses, the phases of the Moon, and why the phases occur.
Utah Education Network
Uen: How Big Are Earth, Sun, and Moon?
Understand where the sun is in the solar system and how big the earth, moon, and sun are.
The Wonder of Science
The Wonder of Science: Ms Ess1 1: Earth Sun Moon System
Develop and use a model of the earth-sun-moon system to describe the cyclic patterns of lunar phases, eclipses of the sun and moon, and seasons.