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7.1-7.4 Dynamic Earth

Total questions: 47

Worksheet time: 31mins

Name
Class
Date
1.

This German scientist proposed that continents used to fit together in a large mass and drifted to their current positions over billions of years. (a)  

Choose from the below words
Wegener
Einstein
Darwin
Mendel
2.
The Juan De Fuca Plate diving beneath the north american plate is known as...
a)
a divergent plate boundary
b)
an island arc
c)
a subduction zone
d)
a transform plate boundary
3.

The (a)   is a rigid layer of the Earth composed of the upper mantle and the crust. Tectonic plates exist on this layer.

Choose from the below words
mesosphere
lithosphere
asthenosphere
mantle
4.
When rocks bend due to stress, they sometimes break.  This break is called a __________.
a)
transform boundary
b)
stress zone
c)
convergent zone
d)
fault
5.
When two fault blocks move horizontally past each other, this is called a ______________.
a)
convergent fault
b)
normal fault
c)
strike-slip fault
d)
reverse fault
6.
Earthquakes can occur at....
a)
convergent boundaries
b)
divergent boundaries
c)
transform boundaries
d)
all of the above!
7.
When a rock is stretched and bent due to stress this is called...
a)
a fault zone
b)
elastic deformation
c)
elastic rebound
d)
an earthquake
8.
Which if the following is NOT a type of earthquake wave?
a)
S waves
b)
P waves
c)
T waves
d)
surface waves
9.
The fastest type of earthquake waves .....
a)
are called P waves
b)
can travel through liquids,solids and gases
c)
are longitudinal waves
d)
all of the above
10.
These are the slowest and most destructive earthquake waves.
a)
P waves
b)
S waves
c)
T waves
d)
surface waves
11.
The _________ is the point on earth's surface directly above an earthquakes' starting point.
a)
focus
b)
Richter scale
c)
epicenter
d)
seismic wave
12.
This type of earthquake scale measures the amount of kinetic energy released by an earthquake (also known as the magnitude of the earthquake)
a)
mercalli scale
b)
richter scale
c)
epicenter scale
d)
earthquake scale
13.
________ form in the middle of a tectonic plate over a hot spot.
a)
mountains
b)
volcanoes
c)
continental rifts
d)
trenches
14.
A ________ is a mixture of hot steam, ash, rock and dust that is blasted into the air during an explosive volcanic eruption.
a)
lava dome
b)
Mudslide
c)
effusive flow
d)
pyroclastic flow
15.
Which of the following is NOT a type of magma?
a)
lahar
b)
mafic
c)
intermediate
d)
felsic
16.
Mt. Hood is a volcano in Oregon which is steep near the summit but slopes gently towards the base.  Mt. Hood is an example of a _________________ volcano.
a)
shield
b)
lava dome
c)
composite
d)
cinder cone
17.
A volcano that has not erupted recently, but could in the future is known as a _________ volcano.
a)
dormant
b)
active
c)
cinder cone
d)
extinct
18.
The picture shows a volcano with a wide base which is not very steep.  This volcano is called a _____________ volcano.
a)
shield
b)
composite
c)
strato
d)
cinder cone
19.
Volcanoes produce which type of rock?
a)
sedimentary
b)
metamorphic
c)
igneous
d)
sandstone
20.
A __________ eruption is a type of eruption in which the lava has a low viscosity (runny/not thick) and lava gently flows over the surface of the volcano.
a)
explosive
b)
pyroclastic
c)
effusive
d)
productive
21.
Evidence to support continental drift included ______________.
a)
remains of human beings on a number of continents
b)
similar fossils found on different continents
c)
how the continents drifted
d)
written records
22.
What type of plate boundary is this?
a)
Transform
b)
Convergent
c)
Divergent
d)
Plate
23.
Mountains are created when....
a)
Two continental plates collide
b)
Two oceanic plates pull apart
c)
An Oceanic plate subducts under a Continental Plate
d)
Two continental plates pull apart
24.

crack with movement

a)

focus

b)

joint

c)

fault

d)

epicenter

25.
This famous transform fault is located in the western United States creates significant earthquake activity for California
a)
New Madrid
b)
Denali Fault
c)
Ramapo Seismic Zone
d)
San Andreas
26.
An instrument that detects and measures earthquakes is a 
a)
seismogram
b)
focus seismic map
c)
focus
d)
seismograph 
27.

The diagram shows a

a)

S wave

b)

P wave

28.

The diagram shows a

a)

S wave

b)

P wave

29.

Which wave cannot travel through a liquid?

a)

S waves

b)

P waves

30.

What land features pictured?

a)

Mountain Range

b)

Oceanic Ridge

c)

Volcano

d)

Trench

31.
What type of volcano is this? It has been created with layers of both lava and pyroclastic materials. 
a)
Shield
b)
Cinder cone
c)
Composite
32.
What type of volcano is this? It has been created with layers of cooled lava. 
a)
Shield
b)
Cinder cone
c)
Composite
33.
Which of the following terms are used to describe a volcano that is has not recently erupted, but may in the future? (aka sleeping volcano)
a)
Composite volcano
b)
Active volcano
c)
Extinct volcano
d)
Dormant volcano
34.
Which of the following terms are used to describe a volcano that may erupt at any time? 
a)
Dormant volcano
b)
Active volcano
c)
Extinct volcano
d)
Shield volcano
35.

The bending of rock layers because of stress in earth's crust is called this.....

a)

Shear

b)

Folding

c)

Anticline

d)

Brittle

36.

Stress that pushes rocks in parallel but opposite directions

a)

tension stress

b)

compression stress

c)

shear stress

d)

fault stress

37.

Stress that stretches or pulls rock apart

a)

shear stress

b)

compression stress

c)

tension stress

d)

fault stress

38.
Squeezing rock until it breaks is what stress?
a)
tension
b)
compression
c)
shearing
39.
Stretching rock so it becomes thinner in the middle is what kind of stress?
a)
tension
b)
compression
c)
shearing
40.
The cat is standing on the...
a)
foot wall
b)
hanging wall
c)
left
d)
weirdest elevator ever
41.

Which is the correct order of the Earth's layers?

Outer most layer first.

a)

Crust, Outer Core, Mantle, Inner Core

b)

Crust, Mantle, Outer Core, Inner Core

c)

Inner core, Outer core, Mantle, Crust

42.

As you move deeper into the Earth's core, the temperature is:

a)

cooler

b)

hotter

43.

When the oceanic crust sinks beneath the less dense continental crust, like a cookie in milk, this is called:

a)

lithosphere

b)

asthenosphere

c)

subduction

44.

What layer is a shell of liquid iron nickel that creates the Earth's magnetic field?

a)

Outer Core

b)

Mantle

c)

Crust

d)

Inner Core

45.

The process where oceanic crust slides under another plate and is melted is called ___________.

a)

seafloor spreading

b)

subduction

c)

continental drift

d)

recycling

46.
What kind of plate boundary is shown here?
a)
divergent
b)
convergent
c)
transform
d)
subducting
47.

What is the source of energy that drives plate movement?

a)

the subducton of the sea floor

b)

the different densities of the oceanic and crustal plates

c)

convection currents in the mantle

d)

the friction force between the plates that move past each other

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