5 Written Questions

1. the variation in sunspots may cause changes in the Earth's temperature
2. because its mass is so great
3. the layer of the sun's atmosphere which produces a reddish glow
4. the inner layer of the sun's atmosphere which produces the light
5. areas of gas on the sun which are cooler than areas that surround them

5 Matching Questions

1. solar winds
2. 15 million degrees Celsius
3. auroras
4. (He) helium
5. the Earth's atmosphere and magnetic field

1. a the product of the sun's fusion
2. b these usually prevent solar winds from entering our world
3. c the glowing of gas molecules in the Earth's atmosphere caused by solar winds
4. d streams of electrically charged particles coming from the corona
5. e the temperature in the core of the sun

5 Multiple Choice Questions

1. reddish loops of gas which link sunspots
   1. auroras
   2. prominences
   3. chromosphere
   4. the poles
2. when several prominences connect, these are produced
   1. auroras
   2. solar flares
   3. corona
   4. solar winds
3. the process by which the sun generates energy
   1. solar winds
   2. solar flares
   3. auroras
   4. nuclear fusion
4. the number of charged particles in solar winds
   1. on Earth solar flares can cause
   2. solar winds
   3. solar flares increase
   4. solar flares
5. in the sun
   1. solar flares
   2. 99.8% of the mass of the solar system is...
   3. on Earth solar flares can cause
   4. hypothesis about sunspots

5 True/False Questions

1. corona → the glowing of gas molecules in the Earth's atmosphere caused by solar winds

   True        False

2. slightly less → when several prominences connect, these are produced

   True        False

3. 10 to 11 years → the length of time it will take for the sun to use up all of its hydrogen

   True        False

4. the poles → where solar winds can enter the Earth's atmosphere

   True        False

5. 10 billion years → time span over which the number of sunspots varies

   True        False