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WorksheetsUniverse/Solar System Review
Total questions: 30
Worksheet time: 22mins
Name
Class
Date
1.
Earth's 24 hour day is caused by its _____.
a)
revolution around the sun
b)
rotation on its axis
c)
moon's orbiting around it
d)
eclipsing the sun
2.
What is the hottest planet in our solar system (because of its extreme greenhouse effect)?
a)
Earth
b)
Mercury
c)
Venus
d)
Neptune
3.
How is the density of inner planets different from that of the outer planets?
a)
The inner planets are MORE dense than the outer planets because they're solid.
b)
The inner planets have the same density as the outer planets.
c)
The inner planets are LESS dense than the outer planets because they're solid.
d)
The inner planets have no density when compared to the outer planets.
4.
What would happen to the gravitational pull between the sun and Earth if Earth were CLOSER to the sun?
a)
The gravitational pull between these two objects would decrease.
b)
There would be no change in the gravitational pull.
c)
The gravitational pull would no longer exist with any change in distance.
d)
The gravitational pull between these two objects would increase.
5.
A ______ is a space rock that burns up in Earth's mesosphere.
a)
meteoroid
b)
meteor
c)
meteorite
d)
comet
6.
Which planet contains the Great Red Spot?
a)
Neptune
b)
Saturn
c)
Earth
d)
Jupiter
7.
What is an accurate description of the shape of the Milky Way galaxy?
a)
It is shaped like a cloud of gas and dust.
b)
It has an irregular shape that cannot be defined.
c)
It is shaped like a pinwheel.
d)
It is shaped like Mr. Christman.
8.
What keeps the planets in orbit around the sun?
a)
Gravity and inertia combined
b)
Only gravity
c)
Only inertia
d)
Gravity, inertia, and acceleration
9.
What model of the universe did Copernicus propose and Galileo support?
a)
heliocentric model
b)
geocentric model
10.
Which statement is true about a comet?
a)
Its tail is always present no matter where it is in the solar system.
b)
It is smaller than meteor.
c)
Its tail forms as it approaches the sun and always blows away from the sun.
d)
Its tail forms in the Oort cloud and always blows towards the sun.
11.
What evidence did Hubble discover that supported the big bang theory?
a)
There are a few galaxies and all of them are moving towards each other.
b)
Galaxies are moving away from each other.
c)
The Milky Way galaxy IS the universe.
d)
Hubble did not discover any evidence to support this theory.
12.
Which is an accurate description of Mars?
a)
The largest planet in our solar system with 67 moons.
b)
A large planet without a solid surface and is tilted on its side.
c)
A yellowish planet with thick clouds, greenhouse effect, and high surface temperatures.
d)
A rust-colored (red) planet with polar ice caps and dry riverbeds.
13.
Where is the large collection of asteroids located?
a)
between Earth and Mercury
b)
just outside our solar system
c)
between the orbits of Mars and Jupiter
d)
beyond the Oort cloud
14.
What is the largest object in our solar system?
a)
the sun
b)
Jupiter
c)
Neptune
d)
Uranus
15.
Which planet rotates COMPLETELY ON ITS SIDE?
a)
Mars
b)
Uranus
c)
Neptune
d)
Venus
16.
Which planet rotates BACKWARDS (retrograde rotation)?
a)
Earth
b)
Venus
c)
Mercury
d)
Mars
17.
A planet's year is created by
a)
the number of seasons it has.
b)
its rotation on its axis.
c)
its revolution around the sun.
d)
the number of moons it has.
18.
How did our solar system most likely form?
a)
from an exploding star
b)
from an expanding galaxy
c)
from a shrinking planet
d)
from a rotating nebula
19.
What is the largest planet in our solar system?
a)
Jupiter
b)
Neptune
c)
Uranus
d)
Saturn
20.
Which early astronomer was the first one to use a telescope to observe the night sky?
a)
Newton
b)
Kepler
c)
Galileo
d)
Copernicus
21.
Which planet's atmosphere is characterized by a thick yellowish cloud of carbon dioxide that creates a tremendous greenhouse effect?
a)
Mars
b)
Mercury
c)
Earth
d)
Venus
22.
The outer atmosphere of a comet is visible in this picture. What is it called?
a)
nucleus
b)
ion tail
c)
dust tail
d)
coma
23.
Which planet in the diagram has the greatest gravitational pull because of its large mass?
a)
Saturn
b)
Jupiter
c)
Neptune
d)
Uranus
24.
What shows the correct sequence of names given to small, rocky objects falling from space to Earth's surface?
a)
meteoroid, meteorite, meteor
b)
meteor, meteoroid, meteorite
c)
meteoroid, meteor, meteorite
d)
meteorite, meteor, meteoroid
25.
Which early model of the universe suggested that Earth was at the center with all the planets and the sun revolving around it?
a)
geocentric
b)
heliocentric
26.
Where is our solar system located within the Milky Way?
a)
directly in the center
b)
on an outer arm
c)
on the very edge
d)
inside an old star
27.
Where can you go to get the most current information about our solar system?
a)
in encyclopedias
b)
your science textbook
c)
Mrs. Wieseman's course page
d)
NASA's website
28.
Which formed first after the big bang?
a)
cats
b)
every galaxy
c)
all the solar systems
d)
the universe
29.
Why does the moon revolve around Earth and not the sun, which is bigger than Earth?
a)
The sun's inertia is too strong to pull on the moon.
b)
The moon's inertia keeps it closer to Earth.
c)
The moon is closer to Earth than it is the sun.
d)
The sun is not big enough to pull on the moon.
30.
What is a light year used to measure?
a)
the distance of really far objects in space
b)
the time it takes sound to travel in a galaxy
c)
the shape of the planets' orbits
d)
the length of time a star shines
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