Astronomy Simon

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Across
  1. 2. Amount of matter.
  2. 8. Every object in the universe attracts every other object.
  3. 10. Measure of the force.
  4. 12. Imaginary line that passes through the North and South poles.
  5. 13. Faint outer atmosphere of the sun.
  6. 15. Moon.
Down
  1. 1. Moons shadow.
  2. 3. Sun.
  3. 4. Attracts all objects.
  4. 5. Movement of one object around one another.
  5. 6. An object at rest will stay at rest and an object in motion will stay in motion.
  6. 7. Push or pull.
  7. 9. Tendency of an object to resist a change in motion.
  8. 11. The motion of the moon around Earth.
  9. 14. Slightly elongated circle