Unit 11 Vocab - Solar System

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Across
  1. 2. - Kepler's 1st Law says planets orbit the sun in this shape.
  2. 4. - a type of planet with a rocky surface and thin atmosphere
  3. 7. - a spherical body which orbits the sun and has cleared its neighborhood.
  4. 9. - a region past Neptune where four dwarf planets live.
  5. 10. - an icy and rocky body which orbits the sun and has a distinct "tail."
  6. 12. - a piece of space debris on the surface of a planet.
  7. 13. - the "father" of heliocentrism
  8. 15. - This force, along with inertia, keeps planets in orbit around the sun.
  9. 17. - A model of the universe with Earth at the center.
  10. 18. - discoverer of Venus' phases and four moons of Jupiter.
  11. 19. - The four largest moons of Jupiter are called this
  12. 23. - A model of the solar system with the sun at the center.
  13. 24. - When planets appear to move backward in their orbit
  14. 27. - a piece of space debris approaching a planet
  15. 28. - Uranus and Neptune are this type of planet
  16. 29. - the largest volcano in the solar system on Mars
Down
  1. 1. - Aristotle's model of the solar system with rotating concentric spheres around Earth
  2. 3. - a region found between Jupiter and Mars
  3. 5. - A moon
  4. 6. - The publisher of the theory of universal gravitation
  5. 8. - the largest storm in the solar system
  6. 11. - a spherical body which orbits the sun but has not cleared its neighborhood.
  7. 14. - The simplest explanation is often the best.
  8. 16. - a piece of space debris in the atmosphere of a planet
  9. 20. - a rocky body which orbits the sun in a belt but is not spherical
  10. 21. - a type of planet with a small core and giant atmosphere
  11. 22. - the outermost region of the solar system
  12. 25. - Kepler's 2nd law says planets move _______ when closer to the sun.
  13. 26. - Jupiter and Saturn are this type of planet