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WorksheetsLife Cycle of Stars with galaxy review
Total questions: 21
Worksheet time: 54mins
Name
Class
Date
1.
______ is a force that causes dust particles to stick together in a nebula.
a)
nuclear fusion
b)
gravity
c)
hydrogen
d)
iron
2.
A star is born and lit up when ______ happens and provides the star with energy that it will use for millions of years.
a)
nuclear fusion
b)
gravity
c)
hydrogen
d)
iron
3.
What color star lives the longest?
a)
blue
b)
red
c)
yellow
d)
white
4.
After a supernova of what used to be a blue star with a very large mass, what is left?
a)
white dwarf star
b)
black dwarf star
c)
black hole
d)
white hole
5.
Why are black holes black?
a)
No light can escape the black hole's gravity
b)
No light is reflected from the closest stars
c)
They are transparent, so you see space
d)
Plants around it prevent light from hitting the black hole.
6.
All stars begin as a __________?
a)
giant
b)
black hole
c)
white dwarf
d)
nebula
7.
Our Sun is average-sized, average temperature, and middle aged.
a)
False
b)
True
8.
Which stage do stars spend most of their lifetime?
a)
first stage
b)
third stage
c)
main sequence
d)
final stage
9.
True or False: Massive stars have LONG lives.
a)
False
b)
True
10.
Which star has the lowest luminosity?
a)
A
b)
B
c)
C
d)
D
11.
Which star has the lowest temperature?
a)
A
b)
B
c)
C
d)
D
12.
Which star is considered a Main Sequence Star?
a)
A
b)
B
c)
C
d)
D
13.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
14.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
15.
Our Galaxy is called the
a)
Mily Galaxy
b)
Milky Way Galaxy
c)
Andromeda Galaxy
d)
Pinwheel Galaxy
16.
Why won't our sun ever become a black hole?
a)
It is too massive
b)
It is too old
c)
It is too young
d)
It is too small
17.
Why won't our sun ever become a black hole?
a)
It is too massive
b)
It is too old
c)
It is too young
d)
It is too small
18.
What stage comes directly before the "main sequence" in the life cycle of star?
a)
Cloud of Gas
b)
Red giant
c)
Protostar
d)
Shell of Gas
19.
What is responsible for bringing the particles together when a star is first born?
a)
Electrostatic Attraction
b)
Heat Energy
c)
Cosmic Radiation
d)
Gravity
20.
Stars are formed in a large cloud of gas and dust called a
a)
cumulonimbus cloud
b)
nebula
c)
neutron star
d)
black hole
21.
Which of these puts the main parts of an average star's life cycle in the correct order?
a)
protostar>
main sequence>
red giant >
white dwarf
main sequence>
red giant >
white dwarf
b)
protostar>
main sequence>
white dwarf>
red giant
main sequence>
white dwarf>
red giant
c)
main sequence>
protostar>
white dwarf>
red giant
protostar>
white dwarf>
red giant
d)
protostar>
red giant >
main sequence>
white dwarf
red giant >
main sequence>
white dwarf
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