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The Sun (Grade 6)

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The Sun

Our Sun is a                 star.
  1. giant
  2. white dwarf
  3. main sequence
  4. neutron
The Sun is composed mainly of                .
  1. methane
  2. argon
  3. oxygen
  4. hydrogen
Which statement does NOT describe the Sun?
  1. The Sun is an average size star.
  2. The Sun is about 110 times the diameter of Earth.
  3. The Sun is approximately 4.6 billion years old.
  4. The Sun has a solid surface.
The gravitational field of the Sun is unable to retain super hot plasma and it causes particles to blow outward into space. This is called
  1. a solar flare.
  2. a prominence.
  3. the solar wind.
  4. an aurora.
Sunspots are dark spots on the Sun's surface. These areas are                 than the rest of the Sun's surface.
  1. harder
  2. softer
  3. warmer
  4. cooler
These large and sudden eruptions of electromagnetic radiation from the Sun can disrupt telecommunications on Earth.
  1. coronal holes
  2. solar flares
  3. solar winds
  4. sunspots
What is the outermost part of the Sun's atmosphere?
  1. chromosphere
  2. photosphere
  3. corona
  4. core
Where does the nuclear fusion process occur?
  1. the core
  2. the radiation zone
  3. the convection zone
  4. the Sun's atmosphere
The Sun's internal structure is broken up into what three zones?
  1. the core, the radiative zone, the convective zone
  2. the core, the helium zone, the convective zone
  3. the core, the radiative zone, the hydrogen zone
  4. the core, the helium zone, the hydrogen zone
Light travels almost 900,000 times faster than sound. It takes light from the Sun about 8 minutes to reach Earth. Why does is take light from the Sun so long to reach Earth?
  1. Light speeds up as it travels through space.
  2. Most light from the Sun is absorbed by objects in space.
  3. It is difficult for light to pass through Earth's atmosphere.
  4. Light from the Sun travels a great distance before it reaches Earth.
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