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WorksheetsF3 : Stars and Galaxies
Total questions: 17
Worksheet time: 10mins
Name
Class
Date
1.
A __________________________ is a huge collection of stars, gases, and dust that is classified by shape.
a)
galaxy
b)
Big Bang Theory
c)
light-year
2.
The distance between stars is measured in units called __________________.
a)
astronomical unit
b)
light-year
c)
Milky Way
3.
According to the ________________________, the universe formed from a single point and is still expanding.
a)
Milky Way
b)
star
c)
Big Bang Theory
4.
Earth and the rest of the solar system are located in the galaxy ___________________.
a)
Milky Way
b)
star
c)
Andromeda
5.
The Local Group is a ___________________ made up of approximately 30 galaxies.
a)
light-year
b)
cluster
c)
star
6.
A _________________________ is a sphere of very hot, burning gas.
a)
star
b)
galaxy
c)
moon
7.
........... pulls clusters of stars together in most galaxies.
a)
air
b)
Big Bang Theory
c)
gravity
8.
Galaxies interact and sometimes ..........
a)
divide apart.
b)
merge together.
c)
dissolve.
9.
Matter in the universe is _______ when a star explodes.
a)
recycled
b)
lost
c)
purple
10.
According to most scientists, the universe formed 13 to 14 _________ years ago.
a)
million
b)
billion
c)
trillion
11.
What is our galaxy?
a)
The Milky Way
b)
The Galaxy S7 Note
c)
The Andromeda Galaxy
d)
Constellations
12.
A __________________________ is a huge collection of stars, gases, and dust that is classified by shape.
a)
galaxy
b)
Big Bang Theory
c)
light-year
13.
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
14.
What are galaxies held together by?
a)
Gravitational Attraction
b)
Stars
c)
Other galaxies
d)
Dust and Gas
15.
Who discovered the idea of a galaxy?
a)
Isaac Newton
b)
Bill Nye
c)
Carl Junior
d)
Thomas Wright
16.
How many stars would be in a small galaxy?
a)
A thousand stars
b)
A billion stars
c)
A hundred stars
d)
A million stars
17.
When do most astronomers suggest that galaxies formed?
a)
After a cosmic "Big Bang"
b)
After the sun shined for the first time
c)
After the dinosaurs roamed the earth
d)
After the Milky Way had its first star
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