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15
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Look at the chart on page 444. Which is hotter, a young blue giant star or a red dwarf star?
Young blue giant
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15
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Why do scientists use a special unit to measure distance?
Because distances in space are so big
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15
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How hot is the surface of the Sun?
5,500 degrees Celsius (or 10,000 degrees Fahrenheit)
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15
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What is the name for smaller stars?
Dwarf stars
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What is our Sun called?
A star
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monster
Reset all scores!
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fairy
Take points!
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25
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gift
Win 25 points!
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baam
Lose 25 points!
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15
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What do scientists call a pattern of stars?
Constellations
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monster
Reset all scores!
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seesaw
Swap points!
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gift
Win 10 points!
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baam
Lose 25 points!
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15
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When did scientists start using telecopes?
In the 1600s
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15
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What is the fastest moving thing in the universe?
Light
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lifesaver
Give 25 points!
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star
Double points!
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rocket
Go to first place!
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lifesaver
Give 10 points!
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15
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The writer says that stars look like...
tiny diamonds fastened to a ceiling.
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lifesaver
Give 25 points!
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magnet
Take 15 points!
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shark
Other team loses 15 points!
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thief
Give points!
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15
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Why do other stars look smaller than our Sun?
They are much farther away from us than the Sun is.
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15
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Is the Sun bigger or smaller than normal stars?
Smaller
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15
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What is a light year?
The distance it takes for light to travel in a year
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