WorksheetsLife cycle of a star
Total questions: 39
Worksheet time: 1hrs 22mins
Name
Class
Date
1.
Gravity pulls gases and dust particles in space toward one another, squeezing them into a smaller and smaller space. The temperature at the center rises high enough for nuclear fusion of hydrogen to begin.
What stage in a stars life cycle is this describing?
What stage in a stars life cycle is this describing?
a)
The birth of a star
b)
The death of a star
c)
Black Hole
d)
Stellar Nebula
2.
Hotter stars appear to be what color?
a)
Red
b)
Blue
c)
Yellow
d)
Green
3.
Cooler stars appear to be what color?
a)
Red
b)
Blue
c)
Yellow
d)
Green
4.
What determines the color of a star?
a)
It's size
b)
It's temperature
c)
It's composition
d)
They are all the same color
5.
A star at the stage in its life cycle when it stops burning hydrogen, begins burning helium, and expands to a large, low-density star.
What stage in the life cycle does this describe?
What stage in the life cycle does this describe?
a)
Supernova
b)
Black Hole
c)
Main Sequence
d)
Red Giant or Red Supergiant
6.
What fuel do stars use?
a)
Oxygen
b)
Hydrogen
c)
Carbon
d)
Iron
7.
In a large mass star, the temperature reaches more than 100 billion degrees. The repulsive forces between the iron nuclei explode the star’s mass into space in a ....
a)
Nebula
b)
Black Hole
c)
Supernova
d)
Neutron star
8.
Larger stars (stars with more mass) have a longer life cycle.
a)
True
b)
False
9.
A relatively small, dense star at the end of its life cycle, which generates little or no energy and has contracted to its densest state.
What stage in the life cycle does this describe?
What stage in the life cycle does this describe?
a)
Black Hole
b)
Nebula
c)
White Dwarf
d)
Red Giant
10.
At what stage in a stars life cycle are elements heavier than iron form?
a)
Red Giant
b)
Supernova
c)
Black Hole
d)
Main Sequence
11.
A large cloud of gas and dust in outer space ejected by an aging star near the end of its life cycle.
What stage in the life cycle is this describing?
What stage in the life cycle is this describing?
a)
Main Sequence
b)
Planetary Nebula
c)
Black Hole
d)
Neutron Star
12.
what stage of the life cycle of a star is this?
a)
Planetary Nebula
b)
Black Hole
c)
Neutron Star
d)
Giant/Supergiant
13.
The remains from its supernova will form a rapidly spinning, highly magnetic star called a...
a)
Neutron star
b)
Black Hole
c)
White Dwarf
d)
Supernova
14.
What stage of the life cycle of a star is this?
a)
Main Sequence
b)
Red Giant
c)
Black Hole
d)
Neutron star
15.
In the death of a large mass star gravitational collapse is so complete that no energy or matter can escape. This is called a...
a)
Neutron Star
b)
Black Hole
c)
Black Dwarf
d)
Supernova
16.
What stage in a stars life cycle is this?
a)
Main Sequence
b)
Planetary Nebula
c)
Supernova
d)
Neutron Star
17.
This is an image of the formation of a star, also known as a ....
a)
Main Sequence
b)
Planetary Nebula
c)
Supernova
d)
Stellar Nebula
18.
All stars begin their life as a
a)
Main Sequence
b)
Nebula
c)
Protostar
d)
Black Dwarf
19.
The life cycles of stars are determined by their:
a)
mass (size)
b)
color
c)
distance from Earth
d)
how bright they are
20.
Our sun is currently in what star stage?
a)
Protostar
b)
Nebula
c)
Main Sequence
d)
Red Giant
21.
______ is a force that causes dust particles to stick together in a nebula.
a)
nuclear fusion
b)
gravity
c)
hydrogen
d)
friction
22.
A gigantic explosion that causes the death of a large star is called
a)
pulsar
b)
red giant
c)
supernova
d)
black hole
23.
A ________ is an object so dense with so much gravity that even light cannot escape.
a)
neutron star
b)
white dwarf
c)
black hole
d)
black dwarf
24.
The core of a Red Giant collapses and becomes a ___________________.
a)
White Dwarf
b)
Blue Supergiant
c)
Red Supergiant
d)
Black Hole
25.
The stage after the main sequence star:
a)
red giant
b)
nebula
c)
white dwarf
d)
black dwarf
26.
When nebula is big and hot enough is collapses on itself and ...................... is made
a)
white dwarf
b)
supernova
c)
protostar
d)
planetary nebula
27.
Black hole ends life of the biggest stars in the universe
a)
true
b)
false
28.
Neutron stars are very small and extremely dense
a)
true
b)
false
29.
The most common elements stars are made of...
a)
Iron & Carbon
b)
Gold & Zinc
c)
Hydrogen & Helium
d)
Fire and Ice
30.
An example of a star in crisis is when a star:
a)
becomes super massive
b)
creates energy from the core
c)
has luminosity
d)
runs out of fuel and collapses
31.
Mass of a star determines how long it "lives".
a)
True
b)
False
32.
The most important thing to know about a star is its...
a)
Volume
b)
Mass
c)
Temperature
d)
Age
33.
What is the sun made up of?
a)
Hydrogen
b)
Helium
c)
Hydrogen and Helium
d)
None of the Above
34.
What stage fills in the blank. Nebula --> Main sequence --> red giant --> ______________ --> white dwarf --> black dwaft
a)
supergiant
b)
planetary nebula
c)
black hole
d)
supernova
35.
Which of the following is NOT a final stage of a star.
a)
black hole
b)
black dwarf
c)
neutron star
d)
red giant
36.
A white dwarf is the final stage for _________ mass stars like our Sun.
a)
small/medium
b)
large
c)
super massive
37.
If you were a star, your life cycle stage would be ______ ________ because you are 'living'.
a)
Red Giant
b)
Main Sequence
c)
White Dwarf
d)
Black Hole
38.
A medium-mass star like our sun is expected to live for __________ years.
a)
10 Billion
b)
10 Thousand
c)
10 Million
d)
10 trillion
39.
Summarize the life cycle of a star for a small star and large star. This should be in you own words
4 lines
100 %
