Solar System

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Across
  1. 2. Which terrestrial planet has a thick atmosphere and extreme heat?
  2. 4. What type of planets are large, gaseous, and have many moons?
  3. 8. Which type of planets typically have more moons?
  4. 10. Which terrestrial planet supports life?
  5. 12. What is the region between Mars and Jupiter where many asteroids orbit?
  6. 13. What icy object has a tail and orbits the Sun?
  7. 17. What cloud of gas and dust did the solar system form from?
  8. 18. What type of planets are small, rocky, and have solid surfaces?
  9. 23. Which terrestrial planet is closest to the Sun?
  10. 24. What path do planets follow around the Sun?
  11. 25. Where are most asteroids found in the solar system?
  12. 30. What system includes the Sun and everything that orbits it?
  13. 31. What process caused planetesimals to grow into planets?
  14. 32. What is the spinning of a planet on its axis called?
  15. 33. Which Jovian planet is famous for its prominent rings?
  16. 36. Which Jovian planet has strong winds and dark storms?
  17. 38. What is the solid center of a comet called?
  18. 39. Which terrestrial planet is known as the Red Planet?
Down
  1. 1. What event can create meteoroids from asteroids?
  2. 3. Which type of planets have a solid surface?
  3. 5. What do Jovian planets have that terrestrial planets mostly lack?
  4. 6. What shape did the solar nebula take during formation?
  5. 7. What is the central part of a terrestrial planet called?
  6. 9. What is a meteoroid often made from?
  7. 11. Which Jovian planet rotates on its side?
  8. 13. What feature is formed when a meteoroid hits a planet?
  9. 14. What small rocky body can become a meteor or meteorite?
  10. 15. What small bodies formed from dust and rock in the early solar system?
  11. 16. What force caused the solar system to collapse into a disk?
  12. 19. What is one major difference between terrestrial and Jovian planets?
  13. 20. How did the solar system begin to form?
  14. 21. What forms when a comet gets close to the Sun?
  15. 22. What type of tail does a comet have besides an ion tail?
  16. 26. What causes meteoroids to enter Earth’s atmosphere?
  17. 27. What imaginary line do planets rotate around?
  18. 28. What formed at the center of the solar nebula?
  19. 29. Which Jovian planet is the largest in the solar system?
  20. 32. Which type of planets often have ring systems?
  21. 34. Which type of planets have higher average density?
  22. 35. What are terrestrial planets primarily made of?
  23. 37. What are Jovian planets primarily made of?