WorksheetsLife Cycle of Stars
Total questions: 54
Worksheet time: 2hrs 48mins
Name
Class
Date
1.
Stars are formed from big clouds of gas and dust is known as a ______.
a)
clouds grande
b)
BCOG's
c)
neutron clouds
d)
nebulae
2.
The only force acting on the nebulae is ________.
a)
thermal
b)
singular
c)
gravity
d)
microscopic
3.
A star is born when ________________ begins to happen.
a)
nuclear fusion
b)
nuclear abrasion
c)
crying
d)
nuclear fission
4.
Larger, cooler stars are called ___________.
a)
Blue Giants
b)
White Dwarfs
c)
Red Giants
d)
Yellow Giants
5.
When our Sun becomes a Red Giant, it will engulf _______.
a)
just Mercury
b)
all the inner planets.
c)
the entire solar system
d)
just Mercury and Venus
6.
The core of a Red Giant collapses and becomes a ___________________.
a)
White Dwarf
b)
Blue Supergiant
c)
Red Supergiant
d)
Black Hole
7.
When a massive star begins to cool and expand it is known as a _______________.
a)
Blue Supergiant
b)
Red Giant
c)
Red Supergiant
d)
White Dwarf
8.
When the core of a Red Supergiant collapses, a bright event known as a ___________ occurs.
a)
superdupernova
b)
supernova
c)
big bang
d)
black hole
9.
After a supernova, the core can collapse into a neutron star, or if massive enough even a ___________.
a)
Black Hole
b)
White Dwarf
c)
Brown Dwarf
d)
Black Dwarf
10.
When a Red Giant's outer atmosphere drifts away it is now known as a ____________.
a)
planetary cloud
b)
White Dwarf cloud
c)
planetary nebula
d)
expanding nebula
11.
More massive stars continue to fuse elements in their cores all the way up to ________.
a)
silicon
b)
iron (Fe)
c)
carbon
d)
plutonium
12.
One possible outcome that is left after a supernova is a super dense core called a _____________.
a)
neutron star
b)
Yellow Star
c)
Red Giant
d)
Black Dwarf
13.
A black hole is an object so dense with so much gravity that even ________ cannot escape.
a)
man
b)
bacon
c)
spaceships
d)
light
14.
Everything you see around you was made inside ________.
a)
the earth
b)
factories
c)
stars
d)
an oven
15.
One possible outcome that is left after a supernova is a super dense core called a:
a)
Neutron Star
b)
White Dwarf
c)
Red Giant
d)
Black Dwarf
16.
When a Red Giant's outer atmosphere drifts away it is now known as:
a)
planetary cloud
b)
White dwarf cloud
c)
planetary nebula
d)
expanding nebula
17.
Our sun is currently in what star stage?
a)
Protostar
b)
Nebula
c)
Main Sequence
d)
Red Giant
18.
Main sequence stars are made primarily of which elements?
a)
Hydrogen only
b)
Helium and Carbon
c)
Carbon and Iron
d)
Hydrogen and Helium
19.
A star that has begun nuclear fusion will last for:
a)
millions of years
b)
a few thousand years
c)
as long as the universe survives
d)
forever
20.
When a nebula condenses and takes on a shape it is called:
a)
a red supergiant
b)
a black hole
c)
a white dwarf
d)
a protostar
21.
The stable and longest lasting period of a star’s life cycle is called:
a)
The birth of a star
b)
Nebula
c)
Neutron star
d)
Main Sequence
22.
What fuel do stars use?
a)
Oxygen
b)
Hydrogen
c)
Carbon
d)
Iron
23.
measures how bright a star would be in relation to the sun if all stars were the same distance from the observer
a)
Brightness
b)
Luminosity
c)
Apparent Magnitude
d)
Photic Strength
24.
Controlled by the rate of fusion in a star's core. The star's color is connected to this, too.
a)
Temperature
b)
Star Temperature
c)
Star volume
d)
Luminosity
25.
A diagram or graph that shows the relationship between luminosity and temperature in a star.
a)
HR (Hertzsprung - Russell) Diagram
b)
Color vs. Brightness chart
c)
Temperature vs. Luminosity chart
d)
Stellar life cycle chart
26.
A mixture of gasses, mainly hydrogen and helium, and dust consisting of heavier elements drifting through space. These are the birth and death sites of stars.
a)
Nebula
b)
Supernova remnant
c)
Stellar dust cloud
d)
Pulsar
27.
A dense ball of concentrated matter at the center of a rotating disk of nebular material. This material will heat up and eventually form a star.
a)
Protostar
b)
Protoplanetary disk
c)
Plasma ball
d)
Incandescent star
28.
A star with a diameter up to 1000 times the diameter of the sun; largest of all stars. May be any color of star.
a)
Red giant star
b)
Supergiant star
c)
Black hole
d)
Main sequence star
29.
Any star that is fusing hydrogen in its core and has a stable balance of outward pressure from core nuclear fusion and gravitational forces pulling inward.
a)
Red giant star
b)
White dwarf star
c)
Supergiant star
d)
Main sequence star
30.
A main sequence star that has stopped fusing hydrogen and begun fusing helium. It has grown in size and changed color as a result. (this is the fate of our sun)
a)
Black hole
b)
Red giant star
c)
White dwarf star
d)
Super red giant star
31.
An exploding massive star. These explosions are responsible for forming all atoms heavier than iron.
a)
Novas
b)
Big bangs
c)
Supernova
d)
Thermonuclear detonation
32.
The high-dense remains of a high mass star after a supernova. Creates an object whose gravity is so strong that all atoms have been crushed into neutrons.
a)
Neutron star
b)
Pulsar
c)
White hole
d)
Black hole
33.
The high-dense remains of a high mass star after a supernova. Creates an object whose gravity is so strong that nothing, not even light, can escape.
a)
Black hole
b)
Quasar
c)
Cephid
d)
Neutron star
34.
Label part 1
a)
#1 Core
b)
#1 Radiation zone
c)
#1 Convection zone
d)
#1 Photosphere
35.
Label part 6
a)
#6 Prominences
b)
#6 Corona
c)
#6 Sunspots
d)
#6 Photosphere
36.
Label part 5
a)
#5 Chromosphere
b)
#5 Radiation zone
c)
#5 Convection zone
d)
#5 Photosphere
37.
Label Part 3
a)
#3 Chromosphere
b)
#3 Radiation zone
c)
#3 Convection zone
d)
#3 Photosphere
38.
Label Part 2
a)
#2 Core
b)
#2 Radiation zone
c)
#2 Convection zone
d)
#2 Corona
39.
Nuclear fusion is when
a)
the nuclei of two atoms join to produce lots of energy
b)
the nuclus of a large atom splits to release lots of energy
40.
The middle layer of the sun's interior that contains very tightly packed gas is called the _____________.
a)
photosphere
b)
chromosphere
c)
radiation zone
d)
convection zone
41.
In which area of the sun does gas rise as it heats up, then fall back down as it cools?
a)
the core
b)
the radiation zone
c)
the convection zone
d)
the corona
42.
When we look at the sun, what layer are we viewing?
a)
photosphere
b)
chromosphere
c)
corona
d)
convection zone
43.
What layer can be seen here?
a)
chromosphere
b)
corona
c)
photosphere
d)
core
44.
the distance light travels in one Earth year; about 9.5 trillion km
a)
galaxy
b)
universe
c)
light-year
d)
corona
45.
Where does nuclear fusion occur?
a)
Space
b)
Radiation Zone
c)
Photosphere
d)
The Core
46.
a brief burst of energy from the sun’s photosphere
a)
corona
b)
solar flare
c)
solar wind
d)
photosphere
47.
a dark spot on the photosphere of the sun
a)
corona
b)
solar flare
c)
sunspot
d)
magnitude
48.
the sun’s atmosphere
a)
corona
b)
universe
c)
photosphere
d)
solar flare
49.
the visible surface of the sun
a)
galaxy
b)
universe
c)
corona
d)
photosphere
50.
a group of stars, gas, and dust
a)
galaxy
b)
universe
c)
light-year
d)
corona
51.
everything that exists- planets, stars, dust, gases, and energy
a)
galaxy
b)
universe
c)
photophere
d)
corona
52.
a band of stars that includes most stars of average color, size, magnitude, and temperature
a)
main sequence
b)
galaxy
c)
magnitude
d)
corona
53.
brightness of stars
a)
galaxy
b)
magnitude / luminosity
c)
photosphere
d)
corona
54.
fast-moving stream of particles thrown into space by solar flares
a)
magnitude
b)
corona
c)
solar flare
d)
solar wind
100 %
