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15
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A very massive star becomes a black hole after:
It has a supernova explosion
It turns into a planet.
It collides with the Sun
It freezes
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15
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When a star is in the “main sequence” stage, it is:
Exploding
Turning into a Planet
Stable and burning hydrogen
Very new and still forming
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15
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A star begins its life as a large cloud of gas and dust called a:
Crater
Galaxy
Comet
Nebula
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Which of these is NOT part of a star’s life cycle?
Microwave
Red Giant
Nebula
Main Sequence
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15
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The Sun is a:
Comet
Planet
Moon
Star
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What do we call stars smaller than the Sun which burn fuel more slowly and exist at cooler temperatures?
Red Dwarf
Supernova
Planetary Nebula
Red Giant
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eraser
Reset score!
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rocket
Go to first place!
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fairy
Take points!
5
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20
25
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thief
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15
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The life cycle of a star depends on its:
Something Else
Size
Location
Materials
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What do we call the explosion of a star?
Red Giant
Planetary Nebula
Kaboom
Supernova
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monster
Reset all scores!
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gold
Win 50 points!
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gift
Win 25 points!
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banana
Go to last place!
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15
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How long can a star in the Main Sequence phase stay stable?
Billions of years
Millions of years
1000 years
100 years
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15
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How is a protostar formed?
When gas in space is pulled together by gravity to form a cloud.
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What is the first stage in a star's life?
Protostar
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15
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What do we call the cloud of dust that forms when the outer parts of a star drift away?
Supernova
Planetary Nebula
Red Dwarf
Cosmic Dust Cloud
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15
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The Sun is currently in which stage of its life?
Main Sequence
Black Dwarf
Protostar
Red Giant
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lifesaver
Give 20 points!
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seesaw
Swap points!
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rocket
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thief
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