Planetary Motion and Astronomy Vocabulary

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Across
  1. 2. a force that keeps the planets in orbit around the sun and you onto the planet earth
  2. 6. the process of nucleus of atoms combining to form more complex and heavy elements
  3. 8. Keplers law that states the planets in our solar system orbit the sun
  4. 9. the shape of the planet’s orbit around the sun
  5. 10. the early formation of a star, before nuclear fusion starts
  6. 11. Keplers law that states that the planets in out solar system have different velocities/speeds
  7. 12. the completion of one planetary orbit around the sun
Down
  1. 1. the fourth state of matter in which a substance is electrified
  2. 3. Keplers law that states that the planets have different sized orbits based on their planetary mass
  3. 4. a process in which large quantities of gas/matter leave the star in a bright explosion
  4. 5. a cloud of dust and gas that is the foundation of the solar system and universe
  5. 7. the idea that the sun is the center of our solar system