WorksheetsEarth Formation Test
Total questions: 33
Worksheet time: 33mins
Name
Class
Date
1.
What is the name of the first supercontinent?
a)
Baltica
b)
Rodinia
c)
Pangaea
d)
Laurentia
2.
The inner and outer core, mantle, and crust of Earth all have __________.
a)
been rigid since the formation of Earth
b)
have the same specific gravity
c)
different densities
d)
the same densities
3.
Why is the age of a zircon grain older than the age of the sandstone that it was found in?
a)
because of the principle of included fragments
b)
It is much less stable than the sandstone.
c)
because of the principle of superposition
d)
It is much more stable than the sandstone
4.
How are microcontinents fused together?
a)
by seams called orogens
b)
by seams called faults
c)
by molten rock
d)
the erosion of mountains
5.
What happened as Earth differentiated during its formative period?
a)
Heavier materials sank toward the core, and lighter materials rose.
b)
Widely separated land areas started looking different from one another.
c)
The Atlantic and Pacific Oceans developed from the original global ocean.
d)
Outgassing formed an oxygen atmosphere.
6.
Which areas of North America were most affected by the formation of the Canadian Shield?
a)
Alaska
b)
the Midwest
c)
the Southwest
d)
the Pacific Coast
7.
The oldest rocks on Earth are __________.
a)
3.5 billion years old
b)
3.96 to 3.8 billion years old
c)
1.6 to 1.8 million years old
d)
1 to 2 billion years old
8.
What are areas called that contain cores of Archean and Proterozoic rock?
a)
Canadian shields
b)
continental crust
c)
Archean shields
d)
Precambrian shields
9.
How were asteroids and meteorites a heat source for Precambrian Earth?
a)
Their impact on Earth generated energy
b)
Their bombardment of Earth caused them to sink to the core.
c)
Their gravitational contraction generated energy.
d)
Their radioactive decay of isotopes generated energy.
10.
What continent existed around 1.8 billion years ago that now forms the core of modern North America?
a)
Laurentia
b)
North America
c)
Pangaea
d)
Rodinia
11.
What evidence supports the hypothesis that Earth is 4.6 billion years?
a)
the age of rocks from the Moon
b)
the age of zircon grains in granitic crustal rocks
c)
the age of meteorites
d)
all of the above answers are correct
12.
What supercontinent is shown in the figure?
a)
Rodinia
b)
Pangaea
c)
Laurentia
d)
Gondwana
13.
Which of the following does NOT show evidence that Earth is approximately 4.6 billion years old?
a)
zircon crystals
b)
Precambrian fossils
c)
meteorites
d)
moon rocks
14.
On the time line above, Earth's first crust appeared on Earth between _____________.
a)
B and C
b)
C and D
c)
D and E
d)
A and B
15.
On the time line above, Pangea appeared on Earth between _____________.
a)
B and C
b)
C and D
c)
D and E
d)
E and F
16.
What is Earth's core composed of?
a)
iron and nickel
b)
hydrogen and iron
c)
nickel and silicon
d)
magnesium and silicon
17.
Why have scientists reasoned that Earth’s outer core is liquid?
a)
Outer core blocks seismic waves
b)
Outer core has no effect on seismic waves.
c)
Outer core diffracts seismic waves
d)
Outer core amplifies seismic waves.
18.
What is the crustal part of the lithosphere primarily composed of?
a)
igneous rocks
b)
simple oxides
c)
peridotite
d)
iron and nickel
19.
What type of instrument can measure the vibrations of an earthquake and study the composition of the Earth?
a)
seismometer
b)
spectrometer
c)
GPS
d)
sonar
20.
What is the dominant materials that makes cratons?
a)
feldspar
b)
gypsum
c)
sedimentary rock
d)
granite
21.
Which factor accounts for so little iron in the Earth's crust?
a)
Iron has a high density
b)
Iron has a low density
c)
Iron has no density
d)
Factor other than denisty
22.
Choose the correct sequence of densities from most dense to least dense of Earth's layers.
a)
crust mantle core
b)
crust core mantle
c)
core mantle crust
d)
mantle crust core
23.
Which of the following correctly shows how continents might be assembled on Early Earth.
a)
Continents->cratons
b)
cratons->continents
c)
continents->cratons->microcontinents
d)
cratons->microcontinents->continents
24.
The buried and exposed parts of a continental shield together compose the _______________________ , the stable core of a continent
a)
photon
b)
core
c)
craton
d)
microcontinent
25.
Earth’s earliest _______________________ likely formed as a result of the cooling of the uppermost mantle.
a)
core
b)
mantle
c)
crust
d)
inner core
26.
What mixed with Earth’s earliest crust to form today's crust?
a)
water
b)
iron
c)
nickel
d)
lead
27.
Without knowing the date the event occurred, approximately where on the time line would you place the formation of the first water?
a)
a-b
b)
b-c
c)
c-d
d)
d-e
28.
Primarily why was differentiation possible on Early Earth but not today?
a)
Ancient Age
b)
Time
c)
Change in Size of Earth
d)
Molten State
29.
Which of the following would you not find on a journey to the center of the Earth.
a)
High Temperatures
b)
Low Temperatures
Low Temperatures
Low Temperatures
c)
Mostly Liquids
d)
Mostly Solids
30.
What does molten mean?
a)
gas
b)
liquid
c)
solid
d)
plasma
31.
All of the following elements are commonly found in Earth’s crust EXCEPT
a)
Oxygen
b)
Silicon
c)
Iron
d)
Calcium
32.
When you tool your journey to the center of the Earth,as you go deeper inside the Earth ____________________.
a)
the temperature stays the same, but the pressure increases
b)
it gets hotter, materials get denser and pressure increases
c)
it gets cooler, drier, and easier to travel
d)
the temperature increases, but the pressure decreases
33.
What are the two main types of crust?
a)
continental and oceanic
b)
lithosphere and asthenosphere
c)
solid and liquid
d)
thick and thin
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