WorksheetsStars and Galaxies
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
Stars are mostly made of:
a)
hydrogen
b)
helium
c)
oxygen
d)
nitrogen
2.
Stars shine because of:
a)
kinetic energy
b)
nuclear energy
c)
gravitational energy
d)
mechanical energy
3.
Which of these are the hottest stars?
a)
red
b)
orange
c)
yellow
d)
blue
4.
What temperature is our sun compared to other stars?
a)
very hot
b)
hot
c)
medium
d)
cool
5.
How long will our sun continue to shine?
a)
1 billion years
b)
3 billion years
c)
5 billion years
d)
7 billion years
6.
How long is one light year?
a)
9.06 trillion km's
b)
9.62 trillion km's
c)
9.64 trillion km's
d)
9.46 trillion km's
7.
How does a galaxy stay together?
a)
movement
b)
gravity
c)
heat
d)
pressure
8.
What type of stars do we mostly find in an irregular galaxy?
a)
old stars
b)
young stars
c)
small stars
d)
large stars
9.
What shape is an elliptical galaxy?
a)
round
b)
disc
c)
spiral
d)
american football
10.
Our solar system is in a galaxy called:
(a)
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