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Solar System Review Flashcards | StudBud
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Solar System Review
Solar System Review
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Questions
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Answers
1
How old is the Earth?
4.5 years
4.5 billion years
4.5 million years
4.5 thousand years
2
What two gases is the sun mostly made of? Choose 2 answers.
Oxygen
Helium
Carbon Dioxide
Hydrogen
3
How far is the earth from the sun?
about 150 billion km
about 150 million km
about 150 thousand km
about 150 km
4
What kind of energy does the sun use?
Nuclear
Mechanical
Chemical
Electrical
5
How long does it take the earth to rotate one time?
1 year
1 month
24 hours
12 hours
6
How many continents does the earth have?
7
4
5
6
7
In July, what is the season in the South?
Autumn (fall)
Summer
Spring
Winter
8
In July, what is the season in the North?
Summer
Autumn (fall)
Spring
Winter
9
What two kinds of energy come from the sun? Choose 2 answers.
Chemical
Electricity
Light
Heat
10
What is the imaginary line around the center of the earth called?
equator
center line
north pole
south pole
11
What percentage of the sun is Hydrogen?
99%
78%
71%
21%
12
What is the path the earth follows around the sun called?
year
rotate
orbit
revolve
13
All planets revolve around the sun.
True
False
14
How many layers does the earth have?
3
5
2
4
15
How long does it take the earth to revolve around the sun?
24 hours
1 month
12 hours
1 year
16
What percentage of the sun is Helium?
27%
99%
21%
0.04%
17
What is the circumference of the Earth?
400,000 km
4 km
4,000 km
40,000 km
18
How old is the sun?
4.6 billion years
6.4 million years
6.4 billion years
4.6 million years
19
How many oceans does the earth have?
7
4
5
6
