astronomy ashleigh meadors

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Across
  1. 2. attracts all objects toward each other
  2. 4. a ball of hot gas, primarily hydrogen and helium then undergoes nuclear fusion
  3. 7. a loose collection of ice and dust that orbits the sun, typically in along narrow orbit.
  4. 8. the amount of matter in an object
  5. 9. an object that orbits a planet
  6. 12. one day
  7. 13. the different shapes of the moon you see from the earth
  8. 14. when neither hemisphere is tilted toward or away from the sun
  9. 15. A streak of light the sky produced by the burning of a meteoroid in earths atmosphere
Down
  1. 1. the measure of the force of gravity on an object
  2. 3. one year
  3. 5. an imaginary line that passes through a planets center
  4. 6. a system of organizing time
  5. 10. when the sun reaches its greatest distance north or south of the equator
  6. 11. an object the orbits a star