MS Unit Test ch4-5

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Across
  1. 2. the measure of a star’s shift as seen from different perspectives on Earth
  2. 5. another name for the North Star
  3. 6. the distance light travels in a year; 300,000 km/s
  4. 9. measurement of amount of light given off by a star
  5. 12. the shape of the planetary orbits
  6. 13. pattern of stars in the sky
  7. 14. a rock that burns up in the Earth’s atmosphere
  8. 16. most stars in the Universe are these types
  9. 18. light cannot escape this region
  10. 19. a large group of stars, gas, and dust held together by gravity
  11. 21. planet that contains the Great Red Spot
  12. 23. the universe began with a big explosion and expanded
  13. 24. proposed a Sun-centered solar system
  14. 26. planet called the “red planet”; contains the largest volcano in the solar system
  15. 27. pieces of rock; most orbit in an area between Mars and Jupiter
  16. 29. planet with a size and mass that are similar to the Earth’s
  17. 30. contains most of the matter in the solar system
  18. 32. loops of matter flowing from the Sun surface
  19. 35. planet with atmosphere of bluish-green color; axis of rotation tilted on its side
  20. 37. galaxy shaped like a football
  21. 40. planet with many rings
  22. 41. dust and rock mixed with frozen water, methane, and ammonia
  23. 42. area of Sun surface that are cooler
Down
  1. 1. what scientists study to determine what substances are in a star’s atmosphere
  2. 3. all stars appear to rotate around this star
  3. 4. small pieces of a comet
  4. 7. group of galaxies
  5. 8. what the Sun fuses hydrogen into
  6. 9. measurement of amount of light received by a star on Earth
  7. 10. how the Sun produces energy
  8. 11. closest planet to the Sun; has extreme temperatures
  9. 15. the Big Dipper and Little Dipper are supposed to picture this animal according to Greek Mythology
  10. 17. large cloud of gas and dust
  11. 20. the direction a comet’s tail points in relation to the Sun
  12. 22. The Sun and 9 planets
  13. 25. shape of galaxies that don’t fit into other classifications
  14. 28. part of a massive star’s life cycle before becoming a supernova
  15. 31. scientists have recently confirmed the presence of this on Mars
  16. 33. a rock that strikes the Earth’s surface
  17. 34. a nebula ________ (area gets smaller), temperatures increase, and then fusion begins
  18. 36. The Milky Way is this galaxy shape
  19. 38. planet that is the smallest and usually the farthest from the Sun
  20. 39. largest layer of Sun’s atmosphere that extends millions of kilometers into space