Internet Sun Quiz

Take the Internet Sun Quiz :

Question #1: The nearest star to the earth is:
    A). Alpha centauri
    B). the sun
    C). beta centauri
     
     
Question #2: The Sun is a ball of hot gases. By weight, it is ____ hydrogen, 28% helium, 1.5% carbon, nitrogen, and oxygen, and 0.5% all other elements.
    A). 70%
    B). 60%
    C). 50%
     
     
Question #3: The Sun's temperature is ____ degrees Fahrenheit at the surface.
    A). 10,000
    B). 100,000
    C). 1,000,000
     
     
Question #4: The Sun's temperature is ____ degrees Fahrenheit at the center.
    A). 27,000,000
    B). 2,700,000
    C). 270,000
     
     
Question #5: The Sun is our nearest star and the source of energy for life on Earth. It is about ____ million miles)
    A). 93
    B). 150
    C). 1.3
     
     
Question #6: The Sun is about 300,000 times heavier than ____ and rotates around its axis (as viewed from the orbiting Earth) in about 27 days.
    A). earth
    B). the moon
    C). mars
     
     
Question #7: Sunspots undergo a well-known cycle of about ____ years (varying irregularly by about one year), during which their numbers grow and decrease again, while the belt in which they appear gradually moves equatorward (a new belt appears at the end of the cycle while the old one dwindles away).
    A). 2
    B). 11.5
    C). 15.1
     
     
Question #8: According to NASA:  'Certain spectral lines are particularly useful, because they come from high levels in the Sun's atmosphere. What color are these lines of hydrogen ?
    A). the GREEN line of hydrogen
    B). the BLUE line of hydrogen
    C). the RED line of hydrogen
     
     
Question #9: The solar furnace that converts hydrogen into helium is deep within the Sun in a region called the core. The difference in temperature between the core and the surface of the Sun forces the energy to travel outward. It travels as radiation (i.e., light and more energetic forms of radiation) through a region called the radiation zone. In the outer part of the Sun's interior, heated solar material circulates in large cells, carrying the energy with it. This process is called convection, and this part of the Sun is called the ___________.
    A). CONVECTION zone.
    B). LIGHT zone.
    C). HEAT zone.
     
     
Question #10: The Sun is the most prominent feature in our solar system. It is the largest object and contains approximately 98% of the total solar system mass. ____ İEarths would be required to fit across the Sun's disk, and its interior could hold over 1.3 million Earths.
    A). Two hundred
    B). One hundred and nine
    C). Three hundred
     
     

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