Worksheetsstar and galaxy
Total questions: 72
Worksheet time: 46mins
Name
Class
Date
1.
The sun is over ______________ times larger than the Earth
a)
one thousand
b)
one million
c)
one billion
d)
two light years
2.
Without the sun's gravity, Earth would....
a)
drift into space
b)
crash into the sun
c)
stay in the same location
d)
none of the above
3.
The pull of Earth's gravity is strongest on objects at
a)
sea level
b)
mountain level
c)
the center of gravity
d)
Earth's orbit
4.
The streak of light that a falling meteoroid produces is called a
a)
shadow
b)
meteor
c)
moon phase
d)
meteorite
5.
Scientist measure distances in space in
a)
light-years
b)
yards
c)
feet
d)
kelvin
6.
a light year is the distance
a)
light travels in two years
b)
light travels in one year
c)
humans can travel in one year in space
d)
none of the above
7.
The _______________ of a star is a measure of how bright it looks from Earth
a)
sun ray
b)
light year
c)
apparent brightness
8.
Which color of stars are the hottest in temperature?
a)
blue
b)
red
c)
gray
d)
yellow
9.
After a star dies, it can reform to become a new star
a)
true
b)
false
10.
A star is born in a huge cloud of gas and dust called a nebula
a)
true
b)
false
11.
To rotate means to _______
a)
spin
b)
twist
12.
Earth makes one complete revolution every 24 hours
a)
true
b)
false
13.
Earth makes one complete rotation every
a)
24 hours
b)
month
c)
12 hours
14.
Section of the sky that has a recognizable star pattern
a)
constellation
b)
northern lights
c)
atmosphere
15.
Scientists who study objects and energy in space
a)
astronauts
b)
NASA
c)
astronomers
d)
Apollo Creed
16.
What do the initial moments after the Big Bang have in common with the universe as it exists now?
a)
all the stars, galaxies, and planets that exist today were formed just a few moments after the Big Bang
b)
The universe back then could not sustain life, and it cannot sustain life now
c)
the universe was extremely hot then, and it is still extremely hot not
d)
the universe began expanding then, and it is still expanding today
17.
What force causes dust particles to stick together in a nebula?
a)
nuclear fusion
b)
gravity
c)
hydrogen
d)
iron
18.
True of false. Most planets in our solar system spin in the same direction.
a)
True
b)
False
19.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
20.
When it is summer in the northern hemisphere, what season is it in the southern hemisphere?
a)
winter
b)
spring
c)
summer
d)
fall
21.
Which statement is true?
a)
A. Earth rotates around the sun and revolves on its axis.
b)
A. The sun revolves around Earth over a 24-hour time period.
c)
A. Earth rotates on its axis, and revolves around the sun.
d)
A. Earth revolves around the sun and the moon.
22.
Why are scientists interested in finding out if there was ever water on Mars?
a)
All life needs water. If there was never water on Mars, there was likely never life.
b)
Water on Mars would prove that humans have lived on Mars.
c)
Water on Mars would indicate it is safe for humans.
d)
Scientists are not interested in finding out about water on Mars.
23.
The moon is a natural ______ of Earth.
a)
comet
b)
axis
c)
satellite
d)
space probe
24.
What is the name of the force that keeps planets on there orbit?
a)
orbit
b)
stars
c)
planets
d)
gravity
25.
What the galaxy are the Earth and the rest of the solar system are located in?
a)
Milky Way
b)
star
c)
Andromeda
26.
Which theory says that the universe formed from a single point and is still expanding?
a)
Milky Way
b)
star
c)
Big Bang Theory
27.
A __________________________ is a huge collection of stars, gases, and dust that is classified by shape.
a)
galaxy
b)
Big Bang Theory
c)
light-year
28.
What is the name of an object that orbits around another object.
a)
rocket
b)
satellite
c)
space shuttle
29.
Is the sun a planet?
a)
Yes
b)
No
c)
I don't know
d)
Maybe...
30.
Is pluto a planet?
a)
Yes
b)
No
c)
Probably not
31.
What is the smallest formation that includes stars, planets, moons, asteroids and other material?
a)
A Solar System
b)
A Universe
c)
A Galaxy
d)
A Comet
32.
Where are all of the galaxies found?
a)
The Universe
b)
A galaxy
c)
A Solar System
d)
A Telescope
33.
There are _____ of galaxies in our Universe
a)
Billions
b)
Millions
c)
Hundreds
d)
Several dozen
34.
A huge system of gas, dust, and stars is a _____________.
a)
galaxy
b)
comet
c)
moon
d)
star
35.
Earth ____________ around the sun. It is a process that takes 365 days.
a)
rotates
b)
revolves
c)
phases
d)
spins
36.
What is the name of our Galaxy?
a)
Mily Galaxy
b)
Milky Way Galaxy
c)
Andromeda Galaxy
d)
Pinwheel Galaxy
37.
What do stars produce?
a)
Heat
b)
light
c)
both heat and light
38.
Which body in our solar system is classified as a star?
a)
Haleys Comet
b)
Pluto
c)
The Sun
d)
Mars
39.
What process takes place inside a star to generate energy?
a)
Nuclear fission
b)
Hydrogen Creation
c)
Nuclear fusion
d)
Helium forming
40.
What force causes dust particles to stick together in a nebula?
a)
nuclear fusion
b)
gravity
c)
hydrogen
d)
iron
41.
Objects made of ice, gas and dust and orbit our sun are called:
a)
Asteroids
b)
Comets
c)
Meteroids
d)
Meteors
42.
Which of the following is the HOTTEST planet?
a)
Uranus
b)
Mars
c)
Venus
d)
Earth
43.
The path of an object as it revolves around another object in space
a)
path
b)
orbit
c)
ellipse
d)
circle
44.
An elongated circle or oval shape , the planet's orbit
a)
orbit
b)
path
c)
circle
d)
ellipse
45.
What is the sun mostly made up of
a)
Helium
b)
Core
c)
Carbon
d)
Hydrogen
46.
What features can you see on the sun
a)
sunspots, prominences, and solar flares
b)
The core
c)
The moon
d)
Earth
47.
What on the sun cools the gas around it
a)
Core
b)
Sun Spots
c)
Prominices
d)
Moon
48.
What is this
a)
Prominice
b)
sun spot
c)
core
d)
Earth
49.
How many suns do we have
a)
13
b)
21
c)
1
d)
4
50.
What happens during nuclear fusion
a)
It explodes
b)
hydrogen atoms join to create helium
c)
Nothing
d)
superman comes alive
51.
Where does nuclear fusion occur?
a)
Space
b)
Radiation Zone
c)
Photosphere
d)
The Core
52.
What layer are you looking at when you take a picture of the sun?
a)
Core
b)
Photosphere
c)
Solar Wind
d)
Corona
53.
Why are sunspots darker than the surrounding areas?
a)
Hotter gas has a darker color
b)
Cooler gas has a darker color
c)
They have more energy
d)
They have less energy
54.
Why are sunspots darker than the surrounding areas?
a)
Hotter gas has a darker color
b)
Cooler gas has a darker color
c)
They have more energy
d)
They have less energy
55.
Layer that makes the light for the sun-
a)
corona
b)
photosphere
c)
core
d)
fusion
56.
What star category has the largest stars?
a)
Super giants
b)
White Dwarfs
c)
Giants
d)
Main Sequence
57.
All stars begin as a __________?
a)
giant
b)
black hole
c)
white dwarf
d)
nebula
58.
What is the color of the coolest stars?
a)
blue
b)
Yellow
c)
Red
d)
Orange
59.
Very hot stars are what color?
a)
Blue
b)
Yellow
c)
Red
d)
Orange
60.
Our Sun is average-sized, average temperature, and middle aged.
a)
False
b)
True
61.
Which of the following star remnants is the most dense?
a)
White Dwarf
b)
Neutron Star
c)
Black Hole
62.
The Sun makes up over 99% of the solar system's mass.
a)
True
b)
False
63.
A star is said to be born when ___.
a)
a protostar reaches a temperature high enough for nuclear fusion
b)
a red giant collapses on itself and becomes a black hole
c)
pressure within a protostar becomes so great that a supernova occurs
d)
a dark, cool interstellar cloud begins to contract
64.
What is the next stage in the sun's life cycle?
a)
white dwarf
b)
red giant
c)
planetary nebula
d)
black dwarf
65.
Which part of the sun lies directly above the visible "surface" of the sun?
a)
photosphere
b)
chromosphere
c)
corona
d)
ionosphere
66.
The sun's surface is made up of mostly ___.
a)
helium
b)
ammonia
c)
hydrogen
d)
oxygen
67.
What are the most explosive events that occur on the sun?
a)
umbras
b)
prominences
c)
solar flares
d)
solar winds
68.
a huge ball of superheated gases
a)
rotate
b)
phase
c)
Universe
d)
star
69.
everything that exists in space
a)
moon
b)
sun
c)
universe
d)
axis
70.
the Earth _____________around the sun
a)
phases
b)
orbits
c)
axis
d)
verses
71.
The Milky Way is what type of galaxy?
a)
Spiral
b)
Elliptical
c)
Irregular
72.
What were the original two elements in our universe?
a)
Lithium and Carbon
b)
Hydrogen and Neon
c)
Helium and Chlorine
d)
Hydrogen and Helium
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