WorksheetsEarth Formation
Total questions: 23
Worksheet time: 2hrs 24mins
Name
Class
Date
1.
A celestial cloud of dust and gas is called . . .
a)
nebula
b)
supernova
c)
accretion disc
d)
bombardment
2.
How old is our solar system?
a)
4.6 billion years
b)
13.8 billion years
c)
6,000 years
d)
15,000 years
3.
A massive explosion of a star is called . . .
a)
supernova
b)
nebula
c)
pulsar
d)
black hole
4.
What celestial body eventually evolved into our modern solar system?
a)
a nebula
b)
a supernova
c)
a quasar
d)
a galaxy
5.
Smaller particles collecting together into larger and larger objects is called . . .
a)
accretion
b)
contraction
c)
explosion
d)
rotation
6.
When the inner planets (and moons) were bombarded by asteroids, what did the asteroids leave behind?
a)
craters
b)
calderas
c)
mountains
d)
valleys
7.
Why is Mercury covered with craters, but Earth is not?
a)
Earth's atmosphere protects and weathers
b)
Earth's moon blocks asteroids
c)
asteroids just missed Earth
d)
most asteroids land in Earth's oceans
8.
When you spin any mass, what shape will it likely take?
a)
Sphere
b)
Disc
c)
Cylinder
d)
Cloud
9.
The sun and all the planets and other bodies that revolve around it make up the
a)
universe
b)
galaxy
c)
solar system
d)
neighborhood
10.
The 4 rocky planets closest to the sun are known as the
a)
inner planets
b)
outer planets
c)
gas giants
d)
tiny four
11.
Which of the following is NOT true of all the inner planets?
a)
they are made of solid rock
b)
they are called gas giants
c)
they have no rings
d)
they have impact craters
12.
Impact craters are caused by n>
a)
solar bursts
b)
atmospheric changes
c)
exploding volcanoes
d)
collisions with objects in space
13.
the planets of the solar system formed as
a)
the center of the gas cloud cooled
b)
planetesimals flattened into a rotating disk
c)
planetesimals collided into one another
d)
the sun absorbed extra gas and dust from the solar system
14.
One of the main differences between the outer and inner planets is __________.
a)
The inner planets all have water
b)
the inner planets are much bigger than the outer planets
c)
the outer planets are gas planets
d)
the outer planets have rings, and the inner planets don't
15.
What is a small body from which a planet originated in the early stages of development of the solar system called?
a)
inertia
b)
planetesimal
c)
terrestrial planet
d)
gas giant
16.
The .................... is a natural satellite that travels around the Earth.
a)
sun
b)
star
c)
moon
d)
sky
17.
Which of these affects tides the most?
a)
Mars
b)
the Sun
c)
the stars
d)
the Moon
18.
the planets of the solar system formed as
a)
the center of the gas cloud cooled
b)
planetesimals flattened into a rotating disk
c)
planetesimals collided into one another
d)
the sun absorbed extra gas and dust from the solar system
19.
Planets form by a process called...
a)
accretion
b)
dark matter interactions
c)
electromagnetic radiation
d)
sun-dropping
20.
The moon probably formed when...
a)
A piece of the Earth broke off due to it's fast rotation
b)
A Mars-sized object rammed into the Earth
c)
Earth captured the moon gravitationally as it attempted to pass by.
d)
the molten bubble of the Earth budded.
21.
The solar system began as a...
a)
giant molecular cloud
b)
a red giant
c)
a gas giant
d)
a sun-sized black hole
22.
What formed from the process of accretion?
a)
Hubble's telescope
b)
Black holes
c)
Pulsars
d)
Planets
23.
Meteorites have clues about our planet's past.
a)
true
b)
false
100 %
