Space Vocab

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Across
  1. 3. A ball of hot gas, primarily hydrogen and helium,that undergoes nuclear fusion
  2. 5. The tide with the greatest difference between consecutive low and high tides
  3. 6. An object that orbits a star,is large enough to have become rounded by it's own gravity, and has cleared the area of its orbit
  4. 8. The path of an object as it revolves around object in space
  5. 9. Dark,flat areas on the moon's surface formed from huge ancient lava flows
  6. 11. The partial or total blocking of one object in space by another
  7. 14. A pattern or grouping of stars that people imagine to represent a figure of object
  8. 15. The darkness of a shadow
  9. 18. The attractive force between object;the force moves down hill
  10. 19. The periodic and fall of the level of water in the ocean
  11. 20. The blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon
  12. 22. The tide with the least difference between consecutive low and high tides
  13. 23. A large round pit caused by the impact of a meteoroid
  14. 26. The spinning motion of a planet on it's axis
  15. 27. An imaginary line that passes through a planet's center and it's north and south pole's, about which the plane rotates
Down
  1. 1. A system of organizing time that defines the beginning,length,and divisions of a year.
  2. 2. Ether of the two days of the year on which the sun reaches its greatest distance north or south of the equator
  3. 4. The movement of an object around another object
  4. 7. The scientific law that states that every object in the universe attracts ever other object
  5. 10. An object that orbits a planet
  6. 12. A loose collection of ice and dust that orbits the sun, typically in a long, narrow orbit
  7. 13. The blocking that orbits a planet
  8. 16. One of the different apparent shapes of the moon as form the Earth
  9. 17. A chunk of rock or dust in space,generally smaller then an asteroid
  10. 21. The part of a shadow surrounding the darkest part
  11. 24. Either of the two days of the year on which neither hemisphere is tilted toward of away from the sun
  12. 25. A streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere