the universe

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Across
  1. 4. a shell of gas at the end of a stars life-the outer layers are ejected into space
  2. 6. theory that states all matter and energy in the universe exploded outward from a single point called a singularity
  3. 10. how bright a star actually is
  4. 12. means that something is moving away from an observer
  5. 14. areas of the photosphere that are cooler, they interact with the suns magnetic field and are present when solar flares occur
  6. 15. the "surface" of our sun that we can see
  7. 16. what is left of the core of a star after a super nova-spins rapidly
  8. 17. when the energy given off by fusion is balanced by gravity-meaning the star will live and not change for millions of years
  9. 19. states that al galaxies are moving away from each other- the further away that faster they move
  10. 24. the core runs out of fuel and must start burning fuel in the atmosphere of the star-causing the star to expand and cool
  11. 25. the variable that changes in response to the independent variable
  12. 27. means that something is moving closer to an observer
  13. 28. a transfer of heat or energy between objects in contact with one another
  14. 29. a transfer of heat or energy within a fluid
  15. 30. an explanation of a high mass star as it runs out of fuel
  16. 32. evidence in support of the big bang left over radiation from when the big bang occured
Down
  1. 1. cloud of dust and gas that forms a star
  2. 2. an apperent shift in the frequency of a wave as a source moves closer to or away from an observer
  3. 3. the area of the interior of our sun that helps bring heat out of the core to the surface
  4. 5. upper part of the suns atmosphere, where solar winds occur
  5. 7. the variable that is purposly changed in an experament
  6. 8. materials that transfer energy such as heat or electricity easily
  7. 9. in an experament the standard that is used to compare test results
  8. 11. do not allow electricity or heat to flow through them easily
  9. 13. an explotion of the suns corona which emits a large stream of high energy
  10. 18. the process that occurs within the core of a star to create new elements when combined with other elements
  11. 20. the center of a star, or our sun-where fusion occurs
  12. 21. core of star left behind after a planetary nebula, small and hot
  13. 22. what is left of the core of a star after a supernova-it is extremly dense, with an intense pull of gravity
  14. 23. a term referring to the energy output of a star- and how bright it is
  15. 26. how bright a star apears
  16. 31. a transfer of heat or energy through space