Astronomy 100 Unit#2 Exam Review Crossword

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Across
  1. 6. When certain atmospheric gases trap heat like CO2 absorbing solar radiation.
  2. 7. Large arches of solar material that is ejected from the surface.
  3. 8. A planet outside of our solar system.
  4. 11. A plot of the location and number of sunspots over time that demonstrate the 11 year solar cycle with maximum sunspots at the midway of each butterfly.
  5. 13. All rings are within this point which is the distance from a celestial body within which a second object will disintegrate as its gravity is overcome.
  6. 14. The part of the solar atmosphere that produces ‘light’ and is the visible surface.
  7. 17. The motion of a planet around the Sun, say.
  8. 18. Large wisps of the solar atmosphere (outermost portion) best viewed during total solar eclipses.
  9. 20. The wobbling of the Moon on its axis of rotation.
  10. 23. Large, smooth, flat areas on the Moon made of basalt.
  11. 25. How fast an object needs to go to escape the gravitational attraction of that celestial body.
  12. 27. Mountains on the Moon that are heavily cratered.
  13. 28. This large storm used to be on Neptune.
  14. 29. A ‘dirty snowball’ or small icy object mixed with rock from the Oort Cloud or Kuiper Belt.
  15. 30. Trails of ejecta from a meteorite impact, often seen on the Moon.
  16. 32. A very deep and long canyon on Mars.
  17. 33. The boundary between terrestrial and jovian planets separating condensation.
  18. 34. Many meteors that come from the same point in the night sky and are associated with the orbits of known comets.
  19. 38. The largest volcano in the solar system that is on Mars.
  20. 39. All Jovian planets have them, but Saturn is the most impressive.
  21. 40. Small bodies (comets or asteroids) that are large enough to be round.
  22. 41. The kinds of volcanoes seen on other planets in the Solar System that are flat and broad.
  23. 42. Donut-shaped region beyond the orbit of Neptune that contains leftover planetesimals from solar system formation.
Down
  1. 1. Small bodies formed from condensation and accretion of gas/dust in the solar nebula.
  2. 2. A meteor that lands on the surface of the Earth.
  3. 3. The part of the solar atmosphere that produces color.
  4. 4. Theory that planets condense from an enormous cloud of H and He gas called the solar nebula around the forming Sun.
  5. 5. This is seen when solar flares or coronal mass ejections enter the Earth’s atmosphere, typically at high latitudes.
  6. 9. The process of fusing light atoms to form heavier ones powering the Sun.
  7. 10. Dark spots on the surface of the sun that come in 11 year cycles.
  8. 11. Volcanic eruptions that produce flat, broad shaped volcanoes.
  9. 12. The spin of a planet on its axis.
  10. 15. Spherical shaped region far from the Sun with a trillion comets with randomly inclined objects.
  11. 16. A feature on the surface of Jupiter about twice the diameter of the Earth that is long lived.
  12. 19. The 4 largest moons of Jupiter that were discovered by Galileo.
  13. 21. Depressions asteroids or meteorites make on the moon or other planetary bodies.
  14. 22. There are thousands of these between Mars and Jupiter and are rocky bodies that orbit the Sun like planets.
  15. 24. A glowing cloud of gas or dust reflecting the light of nearby stars.
  16. 26. One of the two moons of Mars.
  17. 31. Small, solid particles that have orbits in the solar system.
  18. 35. What planetesimals turned into as temperatures cooled during the Heavy Bombardment Period with most craters forming during this time.
  19. 36. A process that renews the surface of Earth because there is water, for example landslides.
  20. 37. Brief expulsion of material from the surface of the sun out of a sunspot.