Quarter 1-week 4-Processes and landforms along divergent and transform fault plate boundary

1. z
Processes and Landforms
Along Divergent and
Transform Fault Plate
Boundaries.
Prepared by: ANGELITA C. BALIGOD

2. z
1. What are geologic
processes and features
formed by divergent
boundary?

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1. What are geologic processes
and features formed by
divergent boundary?
Rift Valley and Mid-Oceanic Ridge
The-Mid-Ocean-Ridge.jpg (640×360) (unbelievable-facts.com)
thingvellir-at-the-rift-valley-in-iceland-iceland_l.jpeg (1920×1280) (locationscout.net)

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2. Why transform fault
boundary is also called
conservative boundary?

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2. Why transform fault
boundary is also called
conservative boundary?
Because crust is neither
destroyed nor created along them.
fault.gif (700×412) (learner.org)

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Possible Causes of
Plate Movements
PRE-TEST
TediousRigidAmericankestrel-size_restricted.gif (327×251) (gfycat.com)

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Objectives:
Discuss the possible causes of
plate movement.
Recognize the process of
convection current in the mantle
Relate the process of convection
to daily life living
TediousRigidAmericankestrel-size_restricted.gif (327×251) (gfycat.com)

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1. A convection current is caused by
differences in temperature resulting
to variation in ________.
A. air pressure
B. color
C. density
D. mass

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2. The idea that Earth’s lithosphere is
broken up into separate plates that
float on the mantle is the theory of.
A. continental drift
B. seafloor spreading
C. tectonic movement
D. plate tectonics

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3. A driving force for plate motion at
mid-ocean ridges as a result of the
rigid lithosphere sliding down.
A. Slab pull
B. Ridge push
C. Convection current
D. Seafloor spreading

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4. Which of the following is NOT
a method of heat transfer?
A. Condensation
B. Convection
C. Conduction
D. Radiation

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5. Which of the following is NOT a
driving force of tectonic plates?
A. Ridge push
B. Slab push
C. Drag force
D. Mantle convection

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Answer Key
1.C
2.D
3.B
4.A
5.C

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Possible Causes of
Plate Movements
Module 4
TediousRigidAmericankestrel-size_restricted.gif (327×251) (gfycat.com)

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20. z ACTIVITY 1: Decode is the Key!
Direction: Decode the
hidden words about the
Possible Causes of Plate
Movement using the
number letter dial below.
Put your answer on the
boxes provided
!
EXAMPLE:
E V I D E N C E S
2-2 8-1 3-3 2-1 2-2 5-2 1-3 2-2 7-1

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Possible Causes of
Plate Movements
Module 4
TediousRigidAmericankestrel-size_restricted.gif (327×251) (gfycat.com)

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1-3 5-3 5-2 8-1 2-2 1-3 7-2 3-3 5-3 5-2 1-3 7-3 6-3 6-3 2-2 5-2 7-2
6-3 3-3 2-1 3-1 2-2 6-2 7-3 7-1 3-2
7-1 4-3 1-1 2-1 6-2 7-3 4-3 4-3
6-2 4-3 1-1 7-2 2-2 5-1 5-3 8-1 2-2 5-1 2-2 5-2 7-2
7-1 7-3 2-1 2-1 7-3 1-3 7-2 3-3 5-3 5-2
ACTIVITY 1: Decode is the Key!
C E I N C R E
I G P S
S B U L
L A E M O E E T
S B U C I N

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1-3 5-3 5-2 8-1 2-2 1-3 7-2 3-3 5-3 5-2
1-3 7-3 6-3 6-3 2-2 5-2 7-2
C E I N
C R E
O N V C T O
U R N T

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6-3 3-3 2-1 3-1 2-2 6-2 7-3 7-1 3-2
I G P S
U
R D E H

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7-1 4-3 1-1 2-1 6-2 7-3 4-3 4-3
S B U L L
P
A
L

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6-2 4-3 1-1 7-2 2-2 5-1 5-3 8-1 2-2 5-1 2-2 5-2 7-2
L A E M O E E T
V N
M
T
P

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7-1 7-3 2-1 2-1 7-3 1-3 7-2 3-3 5-3 5-2
S B U C I N
U D T O

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Possible Causes of
Plate Movements
Module 4
TediousRigidAmericankestrel-size_restricted.gif (327×251) (gfycat.com)

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What causes tectonic plates to move?

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What facilitates these movements?
TediousRigidAmericankestrel-size_restricted.gif (327×251) (gfycat.com)

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The Plate Tectonic Theory provided an explanation about
the movement of the lithospheric plates.

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ALFRED
WEGENER
 Plate Tectonic Theory
 developed in the 1960s, stating
that the Earth’s lithosphere-the
crust and the upper mantle- is
broken up into several pieces
called plates that move slowly.

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philippine mountain ranges -
Yahoo Image Search Results
volcanoes mayon - Yahoo Image Search
Results

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1. What will be going to happen to Earth if it reaches
temperature beyond its normal (very low and very high)
and cannot be able to escape through geologic events?
2. Do human activities contribute to the continuous
increase of the earth’s temperature? If Yes how?
3. If your answer in number two is yes then as a student
how can you help mitigate the global warming that
contributes to the increase of the earth’s internal
temperature?

40. z
Three main processes or forces of
plate movements
1. Convection current
2. Ridge push
3. Slab pull

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I. CONVECTION CURRENT
-happens very slowly, as they
move and drag the plates along
-The hot less dense rising
material spreads out as it
reaches the upper mantle
causing upward and sideward
forces.
-These forces lift and split the
lithosphere at mid-ocean ridge or
at the divergent plate
boundaries.

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I. CONVECTION CURRENT
-The hot magma flows out
of the mantle and cools down
to form new ocean crust.
-The downward movement of
the convection current occurs
along subduction zone or in a
convergent boundary where
the sinking force pulls the
tectonic plate downward. TediousRigidAmericankestrel-size_restricted.gif (327×251) (gfycat.com)

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Convection is a kind of heat transfer. Heat transfer in a convection
is caused by differences in temperature and density within a fluid or
gas particle.

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Activity 2: Rise and Fall
4.
5.
2.
3.
1.

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Rise and Fall
4.
5.
2.
3.
1.

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Rise and Fall
4.
5.
2.
3.
1.
1. Based on the diagram,
what happens to the
water as it heated
2. What happens to the hot
water as it cooled?
3. How does boiling water
resemble a process that
drives the movement of
the tectonic plates?

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Activity 2: Rise and Fall
4. Cold Water
3. Hot Water
5. Source of heat
1. Container
2. Convection Current Occurs

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Rise and Fall
1. Based on the diagram, what
happens to the water as it
heated? Why?
-Water rises as it is heated
because its molecules become
less dense.
2. What happens to the hot
water as it cooled?
-Water sinks as it cools because
its molecules become denser.

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Rise and Fall
3. How does boiling water
resemble a process that
drives the movement of the
tectonic plates?
-The uneven distribution of heat
energy in the water causes denser
molecules to sink and less dense to
rise. Similarly, the uneven
distribution of heat energy in the
earth’s interior causes denser rocks
to sink and less dense rocks to rise.

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II. Ridge Push
As an oceanic crust moves away from a divergent boundary,
it becomes denser than the newer oceanic crust.

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 As the older seafloor sinks, the weight of the uplifted
ridge pushes the oceanic crust toward the trench at
the subduction zone. This process is called ridge

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II. Slab Pull
is the other possible process involved in the tectonic plate
movement.

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The weight of the subducting plate pulls the trailing slab
into the subduction zone just like a tablecloth slipping off
the table and pulling items with it.

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Activity 3:HOW DO WE COOK BY
CONVECTION
Palitaw is a kind of sweet,
chewy and flattened rice cake.
-This Filipino rice cake is
prepared by soaking a glutinous
rice grains in water overnight
and then processed as dough.
-The dough is flattened into
small pieces and cooked in boiling
water until they float, this is
the reason why it was called
palitaw.

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sketch the convection current
occurring in making the said rice
cake

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ACTIVITY 4: Sum Up Challenge.
 Let’s use these materials:
1. paper, ball pen
 Let’s do it this way:
Complete the paragraph by choosing the correct answer from the box.
Less convection more sink magma current
density cycle temperature heat lithospheric mantle rise
core asthenosphere
1. __________ is a kind of 2.____________transfer caused by differences in
3._________and 4._________ of a gas ,fluid or molten rocks. Hot fluid materials
5.___________ because they are 6.___________dense, while cold fluid materials
7.__________because they are 8.__________dense. In the mantle, the repeating
rising and sinking of 9.________creates a convection 10._________ driving the
11.___________ plates that ride on 12.________ to move slowly and constantly.

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ACTIVITY 4: Sum Up Challenge.
Less convection more sink magma
current density cycle temperature heat
lithospheric rise mantle core
asthenosphere
1. ______________ is a kind of 2.______transfer caused by
differences in 3._________and 4._______________ of a gas ,fluid or
molten rocks. Hot fluid materials 5._____ because they are 6.______
dense, while cold fluid materials 7.______ because they are 8._______
dense. In the mantle, the repeating rising and sinking of 9.__________
creates a convection 10._________ driving the 11.______________
plates that ride on 12.__________________ to move slowly and
constantly.
Convection heat
density temperature
rise less
sink more
magma
current lithosphere
asthenosphere

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Possible Causes of
Plate Movements
PRE-TEST
TediousRigidAmericankestrel-size_restricted.gif (327×251) (gfycat.com)

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1. Which of the following DOES NOT
describe a convection process?
A. the handle of a metal pot is hot while cooking
B. boiling of macaroni pasta
C. a sea breeze
D. Ocean water in the surface is warmer

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2. What is the source of heat
generated by the core to the mantle?
A. gases
B. decayed radioactive elements
C. molten rocks
D. molten metals

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3. Which of the following has a faster
movement of molecules?
A. hot materials
B. warm materials
C. cold materials
D. room temperature materials

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4. Which of the following has a lesser
density in a convection cell?
A. warm fluid materials
B. cold fluid materials
C. room temperature fluid materials
D. hot fluid materials

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5. In a convection current, hot
materials move ______________.
A. any direction
B. sideward
C. upward
D. downward

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