Earth, Moon, and Sun

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Across
  1. 1. The area north of the equator is called the northern ________________ (234)
  2. 6. Earth moving around the sun, occurs once each year (233)
  3. 8. A three-dimensional model of Earth (233)
  4. 9. The different shapes that the moon appears to have (235)
  5. 11. Earth's spin, occurs once each day (233)
  6. 14. The days when Earth is not tilted toward the Sun (234)
  7. 16. Summer does _____ occur because Earth is closest to the Sun (234)
  8. 17. A path a moon or planet follows (234)
  9. 18. The combination of Earth's tilted axis and its revolution around the Sun produces Earth's _______________ (234)
  10. 19. An imaginary line that runs from North Pole to South Pole (233)
Down
  1. 2. Occurs when one object in space casts a shadow on another (236)
  2. 3. Seasons are ________________ in the southern hemisphere (234)
  3. 4. When Earth casts a shadow on the moon it causes a ________ eclipse (236)
  4. 5. The time it takes for Earth to make one revolution is one _________ (234)
  5. 7. The center latitude of Earth (234)
  6. 10. June 21 and December 21 are called _________________ (234)
  7. 12. The planet Earth is _______________ at an angle of 23.5 degrees (233)
  8. 13. Changes in ocean water levels that take place in a regular pattern (237)
  9. 15. If the moon casts a shadow on Earth it causes a _________ eclipse (236)
  10. 18. The area south of the equator is called the ______________ hemisphere (234)