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5 Written questions

5 Matching questions

  1. (H) hydrogen
  2. photosphere
  3. 99.8% of the mass of the solar system is...
  4. on Earth solar flares can cause
  5. slightly less
  1. a How does the mass of the helium produced by the sun compare with the mass of the hydrogen that goes into the process?
  2. b disruptions of radio, television and telephone signals and electrical power problems
  3. c the element the sun uses to generate energy
  4. d in the sun
  5. e the inner layer of the sun's atmosphere which produces the light

5 Multiple choice questions

  1. the product of the sun's fusion
  2. the layer of the sun's atmosphere which produces a reddish glow
  3. the variation in sunspots may cause changes in the Earth's temperature
  4. the outer layer of the sun's atmosphere
  5. fusion only occurs in these two conditions

5 True/False questions

  1. 10 billion yearstime span over which the number of sunspots varies


  2. the sun's gravity is so largethe most powerful gravitational force in the solar system


  3. 15 million degrees Celsiusthe length of time it will take for the sun to use up all of its hydrogen


  4. heat and lightthe product of the sun's fusion


  5. aurorasthe glowing of gas molecules in the Earth's atmosphere caused by solar winds


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