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Stars and Galaxies

Total questions: 30

Worksheet time: 18mins

Name
Class
Date
1.

What type of galaxy is oval-shaped?

a)

a spiral galaxy

b)

an elliptical galaxy

c)

an irregular galaxy

2.

What type of galaxy has no special shape or form?

a)

a spiral galaxy

b)

an elliptical galaxy

c)

an irregular galaxy

3.

The Milky Way is a....

a)

spiral galaxy

b)

elliptical galaxy

c)

irregular galaxy

d)

star

4.

What is the name of Earth's star?

a)

Antares

b)

Betelguese

c)

Polaris

d)

the Sun

5.

How are galaxies alike?

a)

The are all the same shape

b)

They have the same amount of stars

c)

They all have stars, gas, and dust

d)

They are all the same temperature

6.

What color is the hottest star?

a)

Red

b)

Yellow

c)

Blue

d)

White

7.

What color is the coolest star?

a)

Red

b)

Yellow

c)

Blue

d)

White

8.

an enormous explosion that occurs when a massive star dies

a)

black hole

b)

nuclear fusion

c)

supernova

d)

solar wind

9.

an immense cloud of dust & gas where stars are born

a)

black hole

b)

nebula

c)

prominence

d)

supernova

10.
Elliptical, spiral, and irregular are all types of ______.
a)
solar systems
b)
universes
c)
galaxies
d)
stars
11.
What happens when a massive star's life ends?
a)
dead star
b)
black hole or neutron star
c)
supernova
d)
white dwarf
12.
After a supernova, the core can collapse into a neutron star, or if massive enough even a ___________.
a)
Black Hole
b)
White Dwarf
c)
Brown Dwarf
d)
Black Dwarf
13.
The life cycles of stars are determined by their:
a)
mass (size)
b)
color
c)
distance from Earth
d)
luminosity
14.

What characteristics are used to classify stars?

a)

Flammability, weight, and reactivity

b)

Temperature/color and brightness

c)

Conductivity, luster, and density

d)

Malleability, distance, and viscoscity

15.

Using the HR diagram, choose the color of Zeta Eridani

a)

blue

b)

white

c)

yellow

d)

red

16.

Which star is hotter than Deneb

a)

Procyon

b)

Sun

c)

Regel

d)

Banard's Star

17.

Which star is brighter than the sun?

a)

Sirius B

b)

Procyon B

c)

Van Maanan's Star

d)

Aldebaran

18.

Which star is considered a main sequence star?

a)

Vega

b)

Betelgeuse

c)

Pollux

d)

Van Maanan's Star

19.

Which star is considered a giant star?

a)

Mira

b)

Zeta Arindani

c)

Barnard's Star

d)

Betelgeuse

20.

Which star is considered a supergiant?

a)

Sirius B

b)

Sun

c)

Betelgeuse

d)

Van Maanan's Star

21.

Which star is considered a dwarf star?

a)

Altair

b)

Procyon B

c)

Deneb

d)

Sirius

22.
Our sun is currently in what star stage?
a)
Protostar
b)
Nebula
c)
Main Sequence
d)
Red Giant
23.
______ is a force that causes dust particles to stick together in a nebula.
a)
nuclear fusion
b)
gravity
c)
hydrogen
d)
friction
24.
The core of a Red Giant collapses and becomes a ___________________.
a)
White Dwarf
b)
Blue Supergiant
c)
Red Supergiant
d)
Black Hole
25.

Our sun will end its life as a black hole

a)

true

b)

false

26.

How many stars are there in our solar system

a)

1

b)

1 billion

c)

1 million

d)

100

27.
The most common elements stars are made of...
a)
Iron & Carbon
b)
Gold & Zinc
c)
Hydrogen & Helium
d)
Fire and Ice
28.
A star is born when it begins...
a)
nuclear fusion
b)
nuclear abrasion
c)
chemical reaction
d)
nuclear fission
29.

What is the correct order for a sun size star

a)

Protostar, main sequence, red giant, white dwarf

b)

main sequence, protostar, red giant, white dwarf

c)

red giant, main sequence, super nova, black hole

d)

protostar, red super giant, main sequence, neutron star

30.

If our sun is classified as a yellow star which letter would represent its stellar classification

a)

O

b)

M

c)

A

d)

G