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Earth's Layers
Test Description: Review of Earth's Layers
Instructions: Answer all questions to get your test result.
1) In which layer of Earth are the deepest wells and holes?
A
crust
B
inner core
C
mantle
D
outer core
2) The layer of Earth that impacts the movement of Earth's tectonic plates is
A
inner core
B
mantle
C
crust
D
outer core
3) The only liquid layer of Earth is
A
the outer core
B
the inner core
C
the mantle
D
the crust
4) The lithosphere consists of
A
crust and outer core
B
continental crust and oceanic crust
C
crust and lower mantle
D
crust and upper mantle
5) How have scientists learned about Earth's layers?
A
by studying and measuring the temperature of lava from volcanoes
B
by measuring the electromagnetic spectrum
C
by digging down deep to measure the temperature of magma
D
by studying earthquake movement
6) The inner and outer core are made mainly of which two metals
A
magnesium and nickel
B
magnesium and iron
C
Iron and nickel
D
Nickel and carbon
7) The inner core is solid because
A
iron is very dense and it is solid
B
of extreme pressure
C
nickel is very dense making it solid
D
iron and nickel are solid
8) The thickest layer of Earth is the
A
outer core
B
inner core
C
crust
D
mantle
9) The order of Earth's layers from LEAST dense to MOST dense is
A
outer core, inner core, mantle, crust
B
inner core, outer core, mantle, crust
C
crust, outer core, inner core, mantle
D
crust, mantle, outer core, inner core
10) The plastic-like layer of Earth which allows the lithosphere to move is
A
inner core
B
lithosphere
C
asthenosphere
D
outer core
11) The layer responsible for Earth's magnetic field is
A
the crust
B
the mantle
C
the inner core
D
the outer core
12) The solid layer of Earth comprised of iron and nickel is
A
the inner core
B
the mantle
C
the outer core
D
the crust
13) The two types of rock that make up the oceanic crust and continental crust respectively are
A
basalt and marble
B
granite and marble
C
basalt and granite
D
obsidian and granite
14) The ______ is comprised of both dry land (continental) and land under the oceans (oceanic).
A
outer core
B
crust
C
inner core
D
mantle
15) Convection currents (responsible for plate movement) are found in the
A
crust
B
outer core
C
inner core
D
mantle
16) The thinnest layer of Earth is the
A
mantle
B
inner core
C
crust
D
outer core
17) Which of the following statements is an OPINION about the mantle?
A
the mantle contains iron, silicone, magnesium, and oxygen
B
heat churns through the mantle
C
It makes up most of the mass of Earth's layers
D
The mantle is the most important layer of the Earth
18) When a material heats up, rises, cools, and sinks, then repeats the cycle is called a
A
convection current
B
advection current
C
conduction current
D
radiation current
19) The portion of the mantle that consists of plastic-like (like silly putty) in which convection currents move is the
A
outer core
B
mesosphere
C
asthenosphere
D
lithosphere
20) What something is made of is
A
composition
B
convection
C
conduction
D
condition
*select an answer for all questions
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