WorksheetsEarth and the Universe- Lessons 1-2
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
What is the main characteristic of a spiral galaxy?
a)
Triangular shape
b)
Football shape
c)
Pinwheel arms
d)
Circular center
2.
How are elliptical galaxies classified?
a)
Based on their color
b)
Based on their shape
c)
Based on their size
d)
Based on their brightness
3.
What distinguishes an irregular galaxy?
a)
Chaotic appearance
b)
Perfect symmetry
c)
Circular structure
d)
Spiral arms
4.
What type of stars are typically found in irregular galaxies?
a)
Young stars
b)
Ancient stars
c)
Red giants
d)
White dwarfs
5.
Why do elliptical galaxies have a smooth appearance?
a)
Due to intense heat
b)
Lack of interstellar matter
c)
Presence of black holes
d)
Abundance of nebulae
6.
What is the sun categorized as among stars?
a)
Largest star
b)
Red giant
c)
Yellow star
d)
White dwarf
7.
Why does the sun appear larger than other stars from Earth?
a)
Due to its brightness
b)
Because it emits more heat
c)
Closer proximity to Earth
d)
Larger size
8.
In what unit is distance often measured in outer space?
a)
Centimeters
b)
Light-years
c)
Meters
d)
Kilometers
9.
How far is Proxima Centauri from Earth in light-years?
a)
1.7 light-years
b)
3.5 light-years
c)
4.2 light-years
d)
5.9 light-years
10.
What is the distance between the sun and Earth in miles?
a)
50 million miles
b)
75 million miles
c)
100 million miles
d)
93 million miles
11.
How long does it take light to travel from Proxima Centauri to Earth?
a)
1 year
b)
4 years
c)
8 years
d)
12 years
12.
What was discovered through the Hubble Ultra Deep Field image?
a)
Over 100 trillion galaxies
b)
Over 100 billion galaxies
c)
Over 500 billion galaxies
d)
Over 1 trillion galaxies
13.
Which celestial body emits light and heat energy?
a)
Moon
b)
Comet
c)
Planet
d)
Star
14.
What makes a galaxy's appearance irregular?
a)
Defined structure
b)
Symmetrical shape
c)
Chaotic look
d)
Spiral arms
15.
What type of galaxy is often found in galaxy clusters?
a)
Elliptical galaxy
b)
Spiral galaxy
c)
Irregular galaxy
d)
Barred galaxy
16.
How do spiral galaxies spread out from the center?
a)
Like triangles
b)
Like spirals
c)
Like circles
d)
Like squares
17.
What do elliptical galaxies contain little of, giving them a smooth appearance?
a)
Interstellar matter
b)
Black holes
c)
Nebulae
d)
Asteroids
18.
Which star is closest to Earth after the sun?
a)
Betelgeuse
b)
Proxima Centauri
c)
Alpha Centauri
d)
Sirius A
19.
How are elliptical galaxies formed, according to scientists?
a)
Through asteroid collisions
b)
Through planetary alignments
c)
Through mergers of smaller galaxies
d)
Through supernova explosions
20.
What is the primary purpose of telescopes like the Hubble Ultra Deep Field?
a)
To study planets in our solar system
b)
To observe other galaxies
c)
To track asteroids
d)
To search for new stars
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