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15
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What is the main difference between a star and a planet?
Stars emit light; planets reflect light.
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25
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What is the difference between a comet and an asteroid?
Comet: Ice and dust, elliptical orbits. Asteroid: Rocky, irregular shapes.
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15
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What is the primary source of energy in the Sun?
Nuclear fusion.
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15
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What is a supernova?
A supernova is the explosive death of a massive star, releasing huge amounts of energy and elements into space.
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15
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How are elements heavier than iron formed?
They are formed during supernova explosions through rapid neutron capture (r-process).
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15
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Why does a black surface heat up faster in sunlight than a white surface?
Black surfaces absorb more thermal radiation, while white surfaces reflect most of it.
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heart
Other team wins 5 points!
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star
Double points!
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gift
Win 20 points!
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thief
Give points!
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25
15
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What is the Milky Way?
The galaxy containing our solar system.
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15
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What is convection, and in which states of matter does it occur?
Answer: Convection is the transfer of heat by the movement of fluid (liquid or gas) particles.
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25
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What is the life cycle of a star similar in mass to the Sun?
Nebula â Protostar â Main sequence star â Red giant â Planetary nebula â White dwarf.
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15
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Why are metals good conductors of heat?
Answer: Metals have free electrons that move easily through the material, transferring energy quickly between particles.
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15
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What is the Big Bang Theory?
The theory that the universe began from a hot, dense singularity.
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monster
Reset all scores!
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rocket
Go to first place!
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fairy
Take points!
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lifesaver
Give 25 points!
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15
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What is a light year?
The distance light travels in one year.
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15
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What force keeps planets in orbit?
Gravity.
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banana
Go to last place!
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seesaw
Swap points!
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shark
Other team loses 10 points!
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banana
Go to last place!
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