What is a term used to describe the brightness of a star?
Magnitude
100
True of False
The sun is located in a Spiral Galaxy
True
100
Dark areas on the surface of the sun are called_________.
Sunspots
100
The distance light travels in one year is a___________.
Light Year
200
Energy from the sun travels in_______.
Waves
200
Most stars fall into a band-like line called_______________.
The main sequence
200
Which of these is not a type of galaxy?
A.) Barred Spiral
B.) Circular
C.) Elliptical
D.) Irregular
Circular
200
Which layer is the hottest part of the sun?
Core
200
True or False
Granules are darker than sunspots.
False
Brighter or Lighter
300
What is solar energy produced by?
Fusion
300
The absolute magnitude of a star depends on__________?
The amount of light it produces
300
True or False
A galaxy is bigger than the universe.
False
Nothing is bigger than the universe
300
Bursts of energy from the sun's atmosphere are called_________.
Solar flares
300
True or False
The Local Group is bigger than the Milky Way.
True
400
The sun is the original source of energy for fossil fuels because____________________________________.
Organisms that died long ago depended on the sun for energy.
400
Astronomers hypothesize that a star forms in a cloud of dust and gas called a ____________.
Nebula
400
Everything that exists is called the_____________.
Universe
400
Particles thrown into space by the sun are called__________.
Solar winds
400
Why are stars considered "dead" when they become a white dwarf?
The star has lost most of its fuel and has become very small and dim.
500
What evidence is there that the sun rotates?
Sunspots moved across the sun, disappear, and reappear on the other side.
500
True of False
The Absolute Magnitude is how bright the star appears from Earth.
False
Apparent
500
Groups of stars, gases, and dust are all part of the___________.
Galaxy
500
In which layer of the sun are the cooler particles pulled down by gravity?
Convection Zone
500
Please put these 4 statements in order from earliest to latest in the life of a star.
A.) the star shrinks and becomes a white dwarf.
B.)The star uses up most of its fuel and grows to become a red giant.
C.) A swirling cloud of dust, a nebula, becomes a small cool star.
D.) A protostar grows in mass and its temperature rises until it begins to glow.