Earth, Moon, and Sun - Key Terms

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Across
  1. 2. The different shapes of the moon you see from Earth
  2. 3. The study of the moon, stars, and other objects in space
  3. 9. The movement of one object around another object
  4. 10. The imaginary line that passes through Earth’s center and the North and South poles
Down
  1. 1. A round pit on the moon’s surface
  2. 2. The part of a shadow that surrounds the darkest part
  3. 4. The two days of the year on which the sun is directly overhead at either 23.5° north or south
  4. 5. The spinning motion of Earth around its axis
  5. 6. Dark, flat areas on the moon’s surface
  6. 7. The darkest part of the moon’s shadow
  7. 8. The rise or fall of ocean water