Chapter 1; Section 1,2,3

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Across
  1. 4. Eclipse occurs when the Moon passes directly behind the Earth into its umbra (shadow).
  2. 9. Either of the two points in the ecliptic farthest from the equator.
  3. 12. a stage in a process of change or development.
  4. 14. Moon When the moon is not visible from Earth, because the side of the moon that is facing us is not being lit by the sun.
  5. 17. The act or process of turning around a center or and axis.
  6. 18. Phase When the moon looks smaller each night
  7. 19. Quarter Looks like half a circle with the right side lit by the sun
Down
  1. 1. the innermost and darkest part of a shadow, where the light source is completely blocked by the occluding body.
  2. 2. Moon Appears as an entire circle in the sky
  3. 3. The path of a celestial body or an artificial satellite as it revolves around another body.
  4. 5. a single complete cycle of such orbital or axial motion.
  5. 6. the regular rise and fall in the surface level of the Earth's oceans, seas, and bays caused by the gravitational attraction of the Moon and to a lesser extent of the Sun.
  6. 7. the region in which only a portion of the light source is obscured by the occluding body.
  7. 8. a dark region of considerable extent on the surface of the moon.
  8. 10. Eclipse occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun.
  9. 11. Part way between a half moon and a new moon, or between a new moon and a half moon
  10. 13. Either of the two points on the celestial sphere where the ecliptic crosses the celestial equator.
  11. 15. Phase the moon is getting larger in the sky moving from the New Moon towards the Full Moon.
  12. 16. Part way between a full moon and a half moon, or between a half moon and a full moon.