Vocab for Unit 2 (8th)

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Across
  1. 2. a large cloud of gas and matter.
  2. 4. the explosion of a star.
  3. 8. a gaseous star in the center of our solar system.
  4. 12. the middle layer of the sun's atmosphere.
  5. 13. the difference in length between the crest of one wave to another crest
  6. 15. a contracting cloud of gas and dust with enough mass to form a star.
  7. 16. instruments that focus and collect visible light and electromagnetic radiation.
  8. 18. light with different wavelengths
  9. 24. huge loops of polarized plasma.
  10. 25. the amount of distance light travels in a year
  11. 27. eruptions of plasma into space.
  12. 28. a round object that orbits the sun and has cleared out the region of the solar system along its orbit.
  13. 29. brightness as seen from earth.
Down
  1. 1. The gravitationally bound system of the Sun and the objects that orbit it.
  2. 3. a small rock floating in space, normally around a belt in between Mars and Jupiter.
  3. 5. a stars actual brightness.
  4. 6. everything in space.
  5. 7. loose balls of ice and rocks.
  6. 9. the way the universe formed in an instant
  7. 10. the inner layer of the sun's atmosphere.
  8. 11. areas of plasma on the sun's surface that are cooler than the plasma around it.
  9. 13. a blue-white remaining core from red giants after the outer layers float away
  10. 14. The distance between the center of the sun and the center of the earth.
  11. 17. chunks of rock or dust smaller than an asteroid.
  12. 19. a usually rocky natural satellite around a planet.
  13. 20. energy given off by matter in space
  14. 21. light you can see.
  15. 22. a huge group of stars.
  16. 23. the outer layer of the sun's atmosphere.
  17. 26. streams of electrically charged particles from the sun.