Solar System and Earth Ch 6-7

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Across
  1. 1. Region around Earth controlled by its magnetic field
  2. 3. A body that orbits the Sun but has not cleared its orbit
  3. 4. Lowest layer of Earths atmosphere
  4. 5. Layer of Earth between the crust and core
  5. 11. Shaking of Earths surface caused by sudden rock movement
  6. 13. Southern hemisphere version of auroras
  7. 14. Light display in Earths sky caused by charged particles
  8. 15. Rocky planets like Earth and Mars
  9. 17. Force that pulls objects toward each other
  10. 19. Supercontinent that existed millions of years ago
  11. 21. Mass per unit volume of a substance
  12. 23. Largest object in the asteroid belt
  13. 25. Small rocky bodies orbiting the Sun
  14. 27. Region beyond Neptune with many icy objects
  15. 28. Large planet mostly made of hydrogen and helium
  16. 29. Electrically charged layer of the upper atmosphere
  17. 30. Middle layer of the atmosphere above the stratosphere
  18. 31. Large gas planets like Jupiter and Saturn
  19. 32. Cloud of gas and dust that formed the solar system
  20. 33. Clouds of gas and dust between stars
Down
  1. 2. Disk of gas and dust around a young star
  2. 6. Movement of large sections of Earths crust
  3. 7. Rise and fall of sea level caused by the Moon and Sun
  4. 8. Spherical shell of icy objects far from the Sun
  5. 9. When a planet passes in front of its star
  6. 10. Icy object that forms a tail near the Sun
  7. 12. Light bending around a massive object
  8. 16. Method of detecting exoplanets by observing star motion
  9. 18. Instrument that measures Earths shaking
  10. 20. Planets that orbit stars outside our solar system
  11. 22. Small bodies that can merge to form planets
  12. 24. The Sun and all objects that orbit it
  13. 25. Growth of objects by collecting material
  14. 26. Fast seismic waves that travel through solids and liquids
  15. 29. Large planet with icy elements like methane