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Player 1
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Player 3
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Player 2
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Player 4
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What is a giant ball of hot
gases that undergo nuclear
fusion?
Show Answer
Answer for 5 Points
A Star
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The Hertzsprung-Russell
diagram shows that main
sequence stars
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Answer for 5 Points
Increase in brightness as they
increase in temperature
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Characteristics used to classify stars
include…..
Name 3
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Answer for 5 Points
Size, brightness, and
temperature
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What color are the coolest
stars?
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Answer for 5 Points
red
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The Variable that determines
whether a protostar becomes
a star is its
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Answer for 5 Points
Mass
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A supernova is the
explosion of a dying
___________ star.
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Answer for 10 Points
High-Mass Star
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All stars begin as part
of a large cloud of gas
and dust called a
__________.
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Answer for 10 Points
nebula
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A spinning neutron star is
called a(n) _________.
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Answer for 10 Points
Pulsar
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Magnetic storms are a result
of an increase in solar wind
caused by eruptions on the
sun called
_________________.
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Answer for 10 Points
Solar Flares
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Astronomers
typically measure
distances to stars in
units called
____________.
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Answer for 10 Points
Light-Years
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The remains of a star that has
no fuel but glows faintly is a
__________ dwarf.
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Answer for 15 Points
White dwarf
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The dense middle layer of the
sun where energy moves slowly
outward in the form of
___________ is called the
radiation zone.
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Answer for 15 Points
Electromagnetic radiation
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A star’s ______________ is
the brightness the star
would have if it were at a
standard distance from
Earth.
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Answer for 15 points
Absolute brightness
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A star’s ______________ is its
brightness as seen from Earth.
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Answer for 15 Points
Apparent brightness
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A device that breaks light
into colors and produces an
image of the spectrum is a
_____________.
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Answer for 15 Points
Spectrograph
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A star’s surface temperature
and its _________ are
directly related.
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Answer for 20 Points
Color
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The region of the H-R
diagram that most stars fall
within is the ______
sequence.
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Answer for 20 Points
Main
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A graph of stars showing
surface temperature on the
x-axis and _________ on
the y-axis is a
Hertzsprung-Russell
diagram.
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Answer for 20 Points
Absolute brightness
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What determines
the life cycle of a
star?
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Answer for 20 Points
Its Mass
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When is a
star born?
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Answer for 20 Points
When nuclear fusion starts.
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An explosion that occurs at
the end of a massive star’s
life is a(n)
____________________.
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Answer for 25 Points
Supernova
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A(n) _____________________
forms from the leftover
material from a supernova; it
may contain as much as
three times the mass of the
sun.
Show Answer
Answer for 25 Points
Neutron star
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Areas of gas on the
sun’s surface that are
cooler than the gases
around them are
Show Answer
Answer for 25 Points
Sunspots
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The sun produces
energy through
Show Answer
Answer for 25 Points
Nuclear Fusion
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The sun’s layers, from the
innermost to outermost, are
the core,
___________________ and
convection zone.
Show Answer
Answer for 25 Points
Radiative zone
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Authored by
Jeff Ertzberger - 2004
University of North Carolina at Wilmington
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