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Worksheets8th Grade Science Universe Review
Total questions: 70
Worksheet time: 1hrs 12mins
Name
Class
Date
1.
What kind of galaxy is this?
a)
Ring
b)
Irregular
c)
Spiral
d)
Elliptical
2.
What kind of galaxy is this?
a)
Peculiar
b)
Active Galaxy: Quasar
c)
Spiral
d)
Elliptical
3.
What kind of galaxy is this?
a)
Barred Spiral
b)
Irregular
c)
Spiral
d)
Elliptical
4.
What is the name of our galaxy?
a)
Snickers
b)
Andromeda
c)
Local Group
d)
Milky Way
5.
What is in the center of every massive galaxy?
a)
A Black Hole
b)
Multiple Black Holes
c)
A Globular Cluster
d)
Mini-Stars
6.
What type of galaxy has no defined pattern or shape?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Constellation
7.
What are the the 3 types of galaxies?
a)
Spiral Galaxies, Regular Galaxies, and Lliptical Galaxies
b)
Spiral Galaxies, Irregular Galaxies, and Elliptical Galaxies
c)
Milky Way, Elliptical Galaxies, and Spiral Galaxies
d)
Milky Way, Elliptical Galaxies, and Irregular Galaxies
8.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
9.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
10.
What is the theory that states the universe began with a huge explosion?
a)
Apparent Magnitude
b)
Light year
c)
Big Bang Theory
d)
Galaxy
11.
What is the brightness of a star as it appears to an observer on Earth?
a)
Big Bang Theory
b)
Apparent Magnitude
c)
Light year
d)
Spiral Galaxy
12.
What is the distance that light can travel in one year?
a)
Light year
b)
Irregular Galaxy
c)
Supernova
d)
Quasar
13.
What is a small, hot, dim star that is the leftover center of an old star?
a)
Spiral Galaxy
b)
Supernova
c)
White Dwarf
d)
Black Hole
14.
What is gigantic explosion that causes the death of a massive star?
a)
Supernova
b)
Nebula
c)
Red Giant
d)
White Dwarf
15.
What is an object that is so massive and dense that even light can not escape its gravity?
a)
Main-sequence
b)
black hole
c)
Apparent Magnitude
d)
Comet
16.
What is a large grouping of stars, dust, and gas bound together by gravity?
a)
Nebula
b)
Galaxy
c)
Cosmology
d)
Gravity
17.
What is a large cloud of dust and gas where new stars are formed or stars explode?
a)
quasar
b)
black hold
c)
supernova
d)
nebula
18.
The Milky Way Galaxy is most likely
a)
an irregular galaxy
b)
a spiral galaxy
c)
an elliptical galaxy
d)
a nebula
19.
Which is the hottest?
a)
a red giant
b)
small, white dwarf
c)
main-sequence yellow star
d)
main-sequence blue star
20.
A student notices that the moon looks larger than the stars. Why?
a)
The moon is reflecting light from the sun
b)
The moon is closer to Earth then the stars
c)
The moon is much larger than the stars
d)
The moon is much larger than Earth
21.
The sun appears brighter than other stars because
a)
it is the largest star in the universe
b)
it is the hottest star in the universe
c)
able to radiate more energy than other stars
d)
is closer to Earth than other stars
22.
The color of a star depends on its
a)
size
b)
temperature
c)
shape
d)
magnitude
23.
What color are the hottest stars?
a)
red
b)
yellow
c)
orange
d)
blue
24.
The universe includes:
a)
all the matter known to exist
b)
all the space that exists
c)
nearly 200 billion galaxies
d)
all of the above
25.
Which item is the greatest in size?
a)
Galaxy
b)
Nebula
c)
Solar System
d)
Star
26.
Which item is the smallest in size
a)
Universe
b)
Galaxy
c)
Planet
d)
Star
27.
What's larger, the universe or a galaxy
a)
Universe
b)
Galaxy
c)
Cannot be determined
d)
They are the same size
28.
Most scientists believe the Big Bang Theory explains which of the following questions?
a)
How our planets and moons formed
b)
How our universe began
c)
How the sun turns hydrogen into helium
d)
How fast light travels through space
29.
Which statement is true?
a)
The galaxies are moving toward us.
b)
The galaxies are moving away from us.
c)
The universe remains static or unchanged in motion.
d)
None of the above
30.
Cosmic Microwave Background Radiation is a form of _________.
a)
Matter
b)
Energy
c)
Visible Light
d)
Water
31.
Which elements are most
abundant in the visible
universe?
a)
Hydrogen and Carbon
b)
Carbon and Helium
c)
Hydrogen and Oxygen
d)
Hydrogen and Helium
32.
As galaxies move away from our galaxy
a shift on the electromagnetic spectrum
(EMS) is noticed. This phenomena is
called _____________.
a)
redshift
b)
blueshift
c)
unshift
d)
blackshift
33.
If a star is being observed from Earth and it's light has shifted towards the blue side of the electromagnetic spectrum it would be...
a)
Moving towards the Earth
b)
Moving away from the Earth
c)
This is a trick question that cannot be answered
d)
It isn't a star, it is a very large blueberry.
34.
If a star is being observed from Earth and it's light has shifted towards the red side of the electromagnetic spectrum it would be...
a)
Moving towards the Earth
b)
Moving away from the Earth
c)
This is a trick question that cannot be answered
d)
It isn't a star, it is a very large blueberry.
35.
The vast majority of galaxies in our universe are moving away from us. We know this because we observe __________ in the galaxies absorption spectra.
a)
Redshift
b)
Blueshift
c)
Turbulance
d)
Superposition
36.
An object that is moving VERY fast away from Earth would have ________ than an object that is moving very slow away from Earth.
a)
More Redshift
b)
More Blueshift
c)
Less Redshift
d)
Less Blueshift
37.
All electromagnetic waves travel at
a)
Speed of Sound
b)
the Speed of Light
c)
the speed of gravity
d)
no idea
38.
What happens to frequency when the energy increases?
a)
it increases
b)
it decreases
c)
it stays the same
39.
What part of the wave is shown at letter A?
a)
crest
b)
trough
c)
wavelength
d)
frequency
40.
Which part of the wave is shown at letter B?
a)
crest
b)
trough
c)
wavelength resting point
41.
Which part of the wave is shown at letter C?
a)
crest
b)
wavelength
c)
resting point
d)
amplitude
42.
What is the frequency of this wave?
a)
3 Hertz
b)
4 Hertz
c)
5 Hertz
d)
6 Hertz
43.
When wavelength increases, what happens to the frequency?
a)
it increases
b)
it decreases
c)
it stays the same
44.
Which wave has a longer wavelength?
a)
wave C
b)
wave D
45.
Which wave has a greater frequency?
a)
wave B
b)
wave C
46.
Which wave has the most energy?
a)
top wave
b)
bottom wave
47.
Our star is a
a)
yellow/ large star
b)
yellow/ small star
c)
yellow/ medium star
48.
Which star has the lowest luminosity?
a)
A
b)
B
c)
C
d)
D
49.
Which star has the lowest temperature?
a)
A
b)
B
c)
C
d)
D
50.
Which star is considered a Main Sequence Star?
a)
A
b)
B
c)
C
d)
D
51.
What can a scientist learn about a star from its spectrum
a)
its color
b)
its size
c)
its composition and temperature
d)
its age
52.
Which of the following types of radiation has the shortest wavelength and the highest frequency?
a)
Radio Waves
b)
Infrared
c)
Visible
d)
X-Rays
53.
The distance between two crests or two troughs of a wave is called:
a)
frequency
b)
amplitud
c)
wavelength
d)
hertz
54.
A lab sample of gas is shown at the top. Which of these would be present in the sample?
a)
Beryllium
b)
Manganese
c)
Strontium
d)
Titanium
55.
Which element is NOT present in the composition of the star?
a)
Calcium
b)
Sodium
c)
Helium
d)
Hydrogen
56.
Which elements make-up the mixture of gases found in the star?
a)
A, D, Z
b)
A and D only
c)
D and Z only
d)
A and Z only
57.
Which elements make-up the mixture of gases found in the star?
a)
lithium and cadmium
b)
strontium and lithium
c)
strontium and cadmium
d)
all three
58.
As a whole, Giants are considered hotter than White Dwarfs.
a)
True
b)
False
59.
In the diagram given, what happens as we move to the left?
a)
Stars Get Larger
b)
Stars get Colder
c)
Stars get hotter
60.
Which star is the coldest?
a)
Yellow Star
b)
Red Star
c)
Orange Star
d)
Blue Star
61.
Compared to the rest of the stars, our sun is considered...
a)
Extremely Large and Cold
b)
Small with a medium temperature
c)
Medium size with medium temperature
62.
Which category is our Sun located in?
a)
White Dwarfs
b)
Supergiants
c)
Main Sequence
d)
Giants
63.
The category that contains the most stars is...
a)
Main Sequence
b)
Supergiants
c)
Giants
64.
Brightness determined by DISTANCE from the earth
a)
Amazing magnitude
b)
Absolute magnitude
c)
Apparent magnitude
d)
Awesome magnitude
65.
Select the picture that represents a spiral galaxy.
a)
A
b)
B
c)
C
d)
D
66.
The mass of the Sun takes up ______ of our solar system.
a)
99.8%
b)
95%
c)
90%
d)
75%
67.
The hottest stars are ________ in color.
a)
Red
b)
Blue
c)
White
d)
Yellow
68.
The coolest stars are ________ in color.
a)
Red
b)
Blue
c)
White
d)
Yellow
69.
A large group of stars, gas, and dust held together by gravity is a ______________.
a)
Local Group
b)
Nebula
c)
Galaxy
d)
Universe
70.
What galaxy do we live in?
a)
Andromeda
b)
Milky Way
c)
Snickers
d)
Corona
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