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Our Solar System
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In which direction does the tail of a comet always point?
Away from the sun.
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What is a group of galaxies called?
A local group
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What is the name of the galaxy that Earth is in?
The Milky Way
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What is the eighth planet from the sun?
Neptune
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What are asteroids and comets made of?
Broken pieces of rock that have combined with ice and dust.
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What is the difference between an asteroid and a comet?
A comet is an asteroid surrounded by a cloud of dust and gas.
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What is the corona of the sun?
The atmosphere around the sun. It looks like a glowing ring.
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What is the 5th planet from the sun?
Jupiter
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What can a moon also be described as?
a satellite
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What is a solar system?
The sun and its planets.
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Why is Earth so well-suited to human life?
Since it is the perfect distance from sun, it has the right temperature to support human life. It also has the right atmosphere.
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What are the two types of planets?
rocky and gaseous
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What can you say about the temperature of planets that are closer to the sun?
They are warmer than the others.
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What is the order of the 8 planets, from closest to the sun to farthest away from the sun?
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
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What is the Virgo Cluster?
The cluster of galaxies in which earth is located.
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What creates solar wind?
Very fast-moving particles from the corona.
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What does the verb "to orbit" mean?
To circle, or revolve, around something.
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What is the difference between a star and a planet?
A star can create its own light, and a planet cannot.
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What are the dark areas that on the sun called (they are cooler than other areas)?
sunspots
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What is the sun?
a star
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Which planet is closest to the sun?
Mercury
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Sudden releases of energy on the sun are called what?
flares
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