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WorksheetsEarth's Layers and Earthquakes
Total questions: 29
Worksheet time: 1hrs 7mins
Name
Class
Date
1.
As you travel from the inner core to the crust, how would temperature, pressure and density of the material change?
a)
They would all increase
b)
They would all decrease.
c)
Nothing, the layers are made of the same material throughout
d)
Temperature would decrease, but pressure and density would increase
2.
The deepest borehole ever drilled was the Kola Superdeep Borehole located in Russia. It's depth is approximately 12 Km. To reach the center of Earth, we would need to drill over 6,000 Km. How do scientists study the deepest part of Earth if we've only drilled a fraction of the way through the crust?
a)
By sending humans directly into the inner core
b)
By visiting deep mines that go deep into the inner core
c)
Sending robots deep into the inner core
d)
By recording and studying seismic waves (earthquake P and S waves)
3.
Geologist believe the inner core is solid but hotter than the outer core which is liquid. What is their reasoning for this?
a)
This is not what they believe. Instead they think the inner core is liquid because with depth temperature increases causing the iron to melt.
b)
Because Earth is a sphere the interior takes on the same shape.
c)
Because all of the pressure from the overlying layers force the material to be a solid despite the hot temperatures.
d)
They have no evidence to support this claim, its just a guess.
4.
Which main layer is more dense than the crust but less dense than the outer core?
a)
mantle
b)
inner core
c)
outer core
d)
crust
5.
The Earth is made up of two types of crust. Which is more dense?
a)
Oceanic crust -basalt
b)
Oceanic crust- granite
c)
Continental crust- granite
d)
continental crust- basalt
6.
Which layer of Earth would have the greatest density?
a)
upper mantle
b)
lower mantle
c)
inner core
d)
outer core
7.
True or FalseThe asthenosphere has soft rock that is very cool.
a)
True
b)
False
8.
True or False
The Earth's thin shell of hard rock is called the crust.
The Earth's thin shell of hard rock is called the crust.
a)
True
b)
False
9.
4. What layer is the hottest?
a)
Core
b)
Crust
c)
Mantle
10.
5. Which layer is the thickest?
a)
Core
b)
Crust
c)
Mantle
11.
If you traveled from the center of Earth to the surface, the pressure would...
a)
increase
b)
decrease
c)
stay the same
d)
unsure
12.
What are the two types of crust?
a)
top crust,bottom crust
b)
oceanic crust, continental crust
c)
water,land
d)
none of the above
13.
What type of heat transfer in found in Earth"s asthenosphere?
a)
Conduction
b)
Convection
c)
Radiation
d)
I don't know
14.
Which layer of Earth is the thinnest?
a)
Crust
b)
Mantle
c)
Inner Core
d)
Outer Core
15.
Oceanic crust is mostly made of ___________ and continental crust is mostly made of ___________.
a)
Granite, basalt
b)
Basalt, granite
c)
Basalt, shale
d)
Granite, slate
16.
Which statement is true about Earth’s inner core?
a)
It is not very dense.
b)
It is composed of molten (melted) metal.
c)
It is under extreme pressure.
d)
It is made of granite and basalt.
17.
What is the location on Earth’s surface where the earthquake occurred?
a)
epicenter
b)
P-wave
c)
focus
d)
edge of the quake
18.
What are the fastest seismic waves?
a)
P waves
b)
T waves
c)
S waves
d)
Q waves
19.
At what location does the first motion of an earthquake occur
a)
the focus
b)
the seismic gap
c)
the mantle
d)
the epicenter
20.
How do scientists find the epicenter of an earthquake?
a)
by comparing arrival times of P waves and S waves at several seismograph stations
b)
by digging at several locations and comparing data
c)
by comparing departure times of P waves and S waves at several seismograph stations
d)
by reviewing satellite photos of tsunamis
21.
What is the epicenter of an earthquake
a)
the location along a fault where the first motion of an earthquake occurs
b)
a seismic wave tht travels along the surface of Earth
c)
the point on Earth's surface directly above the earthquake's focus
d)
the last place that motion in an earthquake is detected
22.
When seismologist record arrival times of P waves and S waves at several seismograph stations, they are looking for the earthquake's
a)
magnitude
b)
intensity
c)
epicenter
d)
focus
23.
The location inside the Earth where an earthquake originates is the
a)
earthquake
b)
fault
c)
focus
d)
epicenter
24.
Which wave is the most destructive?
a)
P - Primary
b)
S - Secondary
c)
Surface Wave
d)
Normal
25.
Which wave arrives second to the seismic station?
a)
P - Primary
b)
S- Secondary
c)
Surface
d)
N-Normal
26.
Which wave arrives first to the seismic station?
a)
P - Primary
b)
S - Secondary
c)
Surface
d)
Mercalli
27.
Which wave can travel through solids and liquids?
a)
P
b)
S
c)
Surface
d)
Seismic
28.
What is the name of the place within Earth where the Earthquake begins?
a)
Focus
b)
Epicenter
c)
fault
d)
reverse
29.
Which type of seismic wave can travel only through solids?
a)
Primary
b)
Secondary
c)
Surface
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