Earth Science Test 2 Vocabulary

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Across
  1. 3. Tropic of ________The latitude (23.5o S) where the sun climbs up to directly overhead at noon on the summer solstice in the Southern hemisphere.
  2. 4. The theory that the sun is at the center of the solar system; Earth and the other planets orbit the Sun, and the Moon orbits Earth
  3. 6. ________ zone: The region around a star in which liquid water can exist on the surface of planets, and which therefore can support advanced life.
  4. 9. The ancient theory that the heavenly bodies and stars orbited Earth.
  5. 10. Moon: The phase of the Moon that occurs when the sunlit side of the Moon is facing directly toward Earth.
  6. 12. The plane containing Earth’s orbit around the Sun.
  7. 14. _____ gibbous: The phase of the Moon that occur in the days before a full Moon when more than half of the near side of the Moon is sunlit.
  8. 18. The part of a shadow in which the light source is not completely blocked.
  9. 19. The point on the orbit around the sun where the orbiting body is farthest from the Sun.
  10. 21. _______ of Cancer: The special name for the latitude 23.5o N.
  11. 22. The equinox that happens during the fall.
  12. 25. _____ crescent: The phase of the moon that occurs a few days before the new Moon when only a sliver of the Moon’s sunlit surface is visible from Earth.
  13. 26. A massive system of stars gravitationally bound to one another.
Down
  1. 1. last _____: The phase of the moon that occurs about a week after a full moon when the left half of the Moon as seen from Earth’s Northern hemisphere is fully sunlit.
  2. 2. waning _______: The phase of the Moon that occurs in the days following a full Moon where more than half of the near side of the Moon is still sunlit.
  3. 5. waxing _____: The phase of the moon that occurs a few days after the new Moon when only a sliver of the Moon’s sunlit surface is visible from Earth.
  4. 7. The point on the orbit around the sun where the orbiting body is farthest from the Sun.
  5. 8. Antarctic _____: the special name for the latitude 66.5oS.
  6. 11. ______ solstice: The shortest day of the year.
  7. 13. ______ quarter: The phase of the moon that occurs about a week after a new moon when the right half of the Moon as seen from Earth’s Northern hemisphere is fully sunlit.
  8. 15. _______ circle: The latitude (66.5o) beyond which the Sun never sets on the day of the summer solstice in the Northern hemisphere.
  9. 16. The equinox that happens during the spring.
  10. 17. The darkest, inner part of a shadow.
  11. 20. The moment in time where there is an equal amount of daylight and night time.
  12. 23. Moon: The phase of the Moon that occurs when the sunlit side of the Moon is facing away from Earth.
  13. 24. Summer ________ The moment of time when the Sun is higher in the sky than at any other time during the year.