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Galaxies
Test Description: The Three Main Types of Galaxies
Instructions: Answer all questions to get your test result.
1) What do you call a huge collections of stars, gas, and dust that travel together through space?
A
black hole
B
galaxy
C
planet
D
nebula
2) Galaxies are the ________ of the universe.
A
building blocks
B
andomedas
C
planets
D
stars
3) Astronomers classify galaxies based on _______.
A
number of stars
B
shape
C
size
D
number of planets
4) This type of galaxy looks like a slightly flattened ball and has older stars than other types of galaxies.
A
irregular
B
Milky Way
C
spiral
D
elliptical
5) These galaxies are shaped like flattened disks that have one or more spiral arms that branch out from their centers.
A
irregular
B
Andromeda
C
elliptical
D
spiral
6) Galaxies with no regular shape are called _______ galaxies and are smaller and fainter than other types of galaxies.
A
irregular
B
spiral
C
elliptical
D
Milky Way
7) All the stars you can see in the night sky with the naked eye are a part of our home galaxy, the _______.
A
Capri Sun
B
Moon Pie
C
Milky Way
D
Snickers
8) The Milky Way galaxy contains about ________ stars.
A
100,000 billion
B
100, 000 trillion
C
100,000 million
D
200, 000 billion
9) The distance of the Milky Way galaxy from edge to edge is about ________.
A
10,000 kilometers
B
10,000 light years
C
10,000 miles
D
10,000 meters
10) In our galaxy, our solar system is found in _______.
A
Orion's Arm
B
in a tentacle of the constellation Scorpio
C
in the mane of the constellation Leo
D
in the handle of the Big Dipper
11) Ancient peoples saw a band of stars stretching across the sky and thought it looked like a river of milk. This is known as the ________ .
A
the Little Dipper
B
Milky Way galaxy
C
the constellation Saggitarius
D
the constellation Aquarius
*select an answer for all questions
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