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Earth, Moon, Stars
Key Terms
Term | Definition |
---|---|
The spinning motion of Earth on its axis | Rotation |
The study of the moon, stars, and other objects in space. | Astronomy |
The different shapes of the moon you see from Earth | Phases |
The imaginary line that passes through Earths center and the north or south of the equator. | Axis |
The 2 days of the year on which the sun reaches its greatest distance north or south of the equator | Solstice |
Earths path as it revolves around the sun | Orbit |
The movement of one object around the other | Revolution |
The cyclical rise or fall of ocean water | Tide |
A round pit on the moons surface | Crater |
The darkest part of the moons shadow | Umbra |
Dark, flat areas on the moons surface | Maria |
The part of the shadow that surrounds the darkest part |