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The Sun
Test Description: Answer the questions and complete your study guide.
Instructions: Answer all questions to get your test result.
1) A hot ball of gas in outer space that creates its own energy is called a
A
comet
B
planet
C
black hole
D
star
2) How far is the Sun from Earth?
A
5 light-years
B
1 AU
C
1 light-year
D
10 AU
3) How many Earths could fit inside the Sun?
A
100
B
100,000
C
1,000,000
D
1,000
4) What do scientists study to figure out how long it takes the Sun to make one rotation on its axis?
A
prominences
B
sunspots
C
auroras
D
flares
5) The Sun's hottest region, in which the Sun's energy is produced, is called the ______________.
A
core
B
photosphere
C
corona
D
chromosphere
6) The Sun is about ___________________years.
A
4,600,000,000
B
6,000
C
25,000,000
D
270,000
7) The Sun makes its own energy through a process called_________________.
A
Combustion
B
Nuclear fission
C
Nuclear fusion
D
Radiation
8) The Sun is primarily made up of ________________ and _____________________.
A
Hydrogen; helium
B
Hydrogen; carbon
C
Silicon; carbon
D
Helium; silicon
9) The Sun is classified as a ___________________star.
A
Giant
B
Dwarf
C
Neutron
D
Supergiant
10) The nearest star to Earth is ________________.
A
The Sun
B
Betelgeuse
C
Proxima Centauri
D
Rigel
*select an answer for all questions
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