Intro Astronomy

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Across
  1. 1. Astronomical unit
  2. 4. G constant.
  3. 6. Amount of substance
  4. 7. Movement of a planet around the Sun.
  5. 10. International system of units
  6. 14. Force from the Earth to each body on its surface
  7. 16. Path of the Sun.
  8. 18. Responsible for the change of the north star every 26000 years.
  9. 19. Motion of the Earth on its axis.
  10. 20. Change of the position over time
Down
  1. 1. Change of the velocity over time.
  2. 2. Amount of matter measured on kilograms
  3. 3. Unit to measure the light intensity in the metric system.
  4. 5. Unit to measure current in International system.
  5. 8. Current I in international system
  6. 9. Dimension, [L]
  7. 11. Temperature unit in the international system
  8. 12. Time unit in the metric system.
  9. 13. Shape of the Earth's trajectory around the Sun.
  10. 15. Force of attraction between masses.
  11. 17. Tilt Earth axis, 23.74 degrees.