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revision plate tectonics

Plate tect go through revision

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Page 1: Plate tect go through revision

revisionplate tectonics

Page 2: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A(b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

Page 3: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A(b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

Question Analysis

Page 4: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A(b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

Question Analysis

Page 5: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A(b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

Question Analysis

Page 6: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A(b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

Question Analysis

= Details

Page 7: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A(b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

Question Analysis

= Details = Give Reasons (because…)

Page 8: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…) Planning

Page 9: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

5 marks = 5 steps

Planning

Page 10: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

5 marks = 5 steps1) Where it happened?

Planning

Page 11: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

5 marks = 5 steps1) Where it happened?

2) What Happened?

Planning

Page 12: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

5 marks = 5 steps1) Where it happened?

2) What Happened?

3) What happened?

Planning

Page 13: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

5 marks = 5 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

Planning

Page 14: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

5 marks = 5 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) describe feature + it is formed over time

Planning

Page 15: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

5 marks = 5 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) describe feature + it is formed over time

oceanic-continental convergent plate boundaries,

Planning

Page 16: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

5 marks = 5 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) describe feature + it is formed over time

oceanic-continental convergent plate boundaries,

plates converge, = compressional forces.

Planning

Page 17: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

5 marks = 5 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) describe feature + it is formed over time

oceanic-continental convergent plate boundaries,

plates converge, = compressional forces.

oceanic crust more dense —> compressional forces push it to subduct.

Planning

Page 18: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

5 marks = 5 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) describe feature + it is formed over time

oceanic-continental convergent plate boundaries,

plates converge, = compressional forces.

continental crust less dense —> compressional forces does not push it to subduct. —> rock layers buckle and fold, —> uplifted

oceanic crust more dense —> compressional forces push it to subduct.

Planning

Page 19: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

5 marks = 5 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) describe feature + it is formed over time

oceanic-continental convergent plate boundaries,

Overtime, …. a range of highland, known as fold mountain, is formed.

plates converge, = compressional forces.

continental crust less dense —> compressional forces does not push it to subduct. —> rock layers buckle and fold, —> uplifted

oceanic crust more dense —> compressional forces push it to subduct.

Planning

Page 20: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

5 marks = 5 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) describe feature + it is formed over time

At oceanic-continental convergent plate boundaries,

Overtime, …. a range of highland, known as fold mountain, is formed.

plates converge, = compressional forces.

continental crust less dense —> compressional forces does not push it to subduct. —> rock layers buckle and fold, —> uplifted

oceanic crust more dense —> compressional forces push it to subduct.

Writing

Page 21: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

5 marks = 5 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) describe feature + it is formed over time

At oceanic-continental convergent plate boundaries,

Overtime, …. a range of highland, known as fold mountain, is formed.

the plates converge, applying a huge amount of pressure known as compressional forces.

continental crust less dense —> compressional forces does not push it to subduct. —> rock layers buckle and fold, —> uplifted

oceanic crust more dense —> compressional forces push it —> sink and subduct.

Writing

Page 22: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

5 marks = 5 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) describe feature + it is formed over time

At oceanic-continental convergent plate boundaries,

Overtime, …. a range of highland, known as fold mountain, is formed.

the plates converge, applying a huge amount of pressure known as compressional forces.

Because the oceanic crust is denser, the compressional forces cause the oceanic crust to subduct and sink under the continental crust

continental crust less dense —> compressional forces does not push it to subduct. —> rock layers buckle and fold, —> uplifted

Writing

Page 23: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

5 marks = 5 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) describe feature + it is formed over time

At oceanic-continental convergent plate boundaries,

Overtime, …. a range of highland, known as fold mountain, is formed.

the plates converge, applying a huge amount of pressure known as compressional forces.

Because the oceanic crust is denser, the compressional forces cause the oceanic crust to subduct and sink under the continental crust

Because the continental crust is less dense, the compressional forces does not push the continental crust to subduct. Instead, the rock layers buckle and fold, causing some of the layers to be uplifted

Writing

Page 24: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

5 marks = 5 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) describe feature + it is formed over time

At oceanic-continental convergent plate boundaries,

Overtime, with further folding and uplifting, a range of highland, known as fold mountain, is formed.

the plates converge, applying a huge amount of pressure known as compressional forces.

Because the oceanic crust is denser, the compressional forces cause the oceanic crust to subduct and sink under the continental crust

Because the continental crust is less dense, the compressional forces does not push the continental crust to subduct. Instead, the rock layers buckle and fold, causing some of the layers to be uplifted

Writing

Page 25: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A(b) the volcano shown in Fig. 12B(c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

Question Analysis

= Details = Give Reasons (because…)

DO WE NEED DIAGRAMS?

Base on the qns, what do you think?

Page 26: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…) Planning

Page 27: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

6 marks = 6 steps

Planning

Page 28: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

6 marks = 6 steps1) Where it happened?

Planning

Page 29: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

6 marks = 6 steps1) Where it happened?

2) What Happened?

Planning

Page 30: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

6 marks = 6 steps1) Where it happened?

2) What Happened?

3) What happened?

Planning

Page 31: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

6 marks = 6 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

Planning

Page 32: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

6 marks = 6 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) What happened?

Planning

Page 33: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

6 marks = 6 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) What happened?

6) describe feature + it is formed over time

Planning

Page 34: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

6 marks = 6 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) What happened?

oceanic-oceanic convergent plate boundaries—> compressional forces.

6) describe feature + it is formed over time

Planning

Page 35: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

6 marks = 6 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) What happened?

oceanic-oceanic convergent plate boundaries—> compressional forces.

6) describe feature + it is formed over time

compressional forces, —-> develop cracks.

Planning

Page 36: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

6 marks = 6 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) What happened?

oceanic-oceanic convergent plate boundaries—> compressional forces.

compressional forces —> oceanic crust to sink and subduct

6) describe feature + it is formed over time

compressional forces, —-> develop cracks.

Planning

Page 37: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

6 marks = 6 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) What happened?

oceanic-oceanic convergent plate boundaries—> compressional forces.

compressional forces —> oceanic crust to sink and subduct

6) describe feature + it is formed over time

the subduct crust melts and moves up the cracks on the crust.

compressional forces, —-> develop cracks.

Planning

Page 38: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

6 marks = 6 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) What happened?

oceanic-oceanic convergent plate boundaries—> compressional forces.

the magma reaches the earth’s surface and erupts as lava…cools and hardens as rocks.

compressional forces —> oceanic crust to sink and subduct

6) describe feature + it is formed over time

the subduct crust melts and moves up the cracks on the crust.

compressional forces, —-> develop cracks.

Planning

Page 39: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…)

6 marks = 6 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) What happened?

oceanic-oceanic convergent plate boundaries—> compressional forces.

the magma reaches the earth’s surface and erupts as lava…cools and hardens as rocks.

compressional forces —> oceanic crust to sink and subduct

6) describe feature + it is formed over timeOvertime, …a mountain or hill that eject magma onto the Earth’s surface, known as a volcano, is formed.

the subduct crust melts and moves up the cracks on the crust.

compressional forces, —-> develop cracks.

Planning

Page 40: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…) Writing

6 marks = 6 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) What happened?

At oceanic-oceanic convergent plate boundaries, the plates converge, applying a huge amount of pressure known as compressional forces.

the magma reaches the earth’s surface and erupts as lava…cools and hardens as rocks.

compressional forces, —-> develop cracks.

compressional forces —> oceanic crust to sink and subduct

6) describe feature + it is formed over timeOvertime, …a mountain or hill that eject magma onto the Earth’s surface, known as a volcano, is formed.

the subduct crust melts and moves up the cracks on the crust.

Page 41: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…) Writing

6 marks = 6 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) What happened?

At oceanic-oceanic convergent plate boundaries, the plates converge, applying a huge amount of pressure known as compressional forces.

the magma reaches the earth’s surface and erupts as lava…cools and hardens as rocks.

Because of the huge pressure from the compressional forces, parts of the crust develop cracks.

compressional forces —> oceanic crust to sink and subduct

6) describe feature + it is formed over timeOvertime, …a mountain or hill that eject magma onto the Earth’s surface, known as a volcano, is formed.

the subduct crust melts and moves up the cracks on the crust.

Page 42: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…) Writing

6 marks = 6 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) What happened?

At oceanic-oceanic convergent plate boundaries, the plates converge, applying a huge amount of pressure known as compressional forces.

the magma reaches the earth’s surface and erupts as lava…cools and hardens as rocks.

Because of the huge pressure from the compressional forces, parts of the crust develop cracks.

Because the oceanic crust is dense, the compressional forces causes the oceanic crust to sink and subduct under a less dense oceanic crust.

6) describe feature + it is formed over timeOvertime, …a mountain or hill that eject magma onto the Earth’s surface, known as a volcano, is formed.

the subduct crust melts and moves up the cracks on the crust.

Page 43: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…) Writing

6 marks = 6 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) What happened?

At oceanic-oceanic convergent plate boundaries, the plates converge, applying a huge amount of pressure known as compressional forces.

the magma reaches the earth’s surface and erupts as lava…cools and hardens as rocks.

Because of the huge pressure from the compressional forces, parts of the crust develop cracks.

Because the oceanic crust is dense, the compressional forces causes the oceanic crust to sink and subduct under a less dense oceanic crust.

6) describe feature + it is formed over timeOvertime, …a mountain or hill that eject magma onto the Earth’s surface, known as a volcano, is formed.

Because the mantle is much hotter than the crust, the subduct crust melts and moves up the cracks on the crust.

Page 44: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…) Writing

6 marks = 6 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) What happened?

At oceanic-oceanic convergent plate boundaries, the plates converge, applying a huge amount of pressure known as compressional forces.

As a result, the magma reaches the earth’s surface and erupts as lava. The lava cools and hardens as rocks.

Because of the huge pressure from the compressional forces, parts of the crust develop cracks.

Because the oceanic crust is dense, the compressional forces causes the oceanic crust to sink and subduct under a less dense oceanic crust.

6) describe feature + it is formed over timeOvertime, …a mountain or hill that eject magma onto the Earth’s surface, known as a volcano, is formed.

Because the mantle is much hotter than the crust, the subduct crust melts and moves up the cracks on the crust.

Page 45: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley.

= Details = Give Reasons (because…) Writing

6 marks = 6 steps1) Where it happened?

2) What Happened?

3) What happened?

4) What happened?

5) What happened?

At oceanic-oceanic convergent plate boundaries, the plates converge, applying a huge amount of pressure known as compressional forces.

As a result, the magma reaches the earth’s surface and erupts as lava. The lava cools and hardens as rocks.

Because of the huge pressure from the compressional forces, parts of the crust develop cracks.

Because the oceanic crust is dense, the compressional forces causes the oceanic crust to sink and subduct under a less dense oceanic crust.

6) describe feature + it is formed over timeOvertime, as more eruptions cause more layers of lava to harden, cool and accumulate, a mountain or hill that eject magma onto the Earth’s surface, known as a volcano, is formed.

Because the mantle is much hotter than the crust, the subduct crust melts and moves up the cracks on the crust.

Page 46: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley. [6]

= Details = Give Reasons (because…)

Page 47: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley. [6]

= Details = Give Reasons (because…)

Able to check (c) on your own??

Page 48: Plate tect go through revision

Bishan Park Sec

1. Describe and explain the processes responsible for the formation of(a) the fold mountains shown in Fig. 12A [5](b) the volcano shown in Fig. 12B [6](c) With the aid of well-labelled diagrams, explain the formation of a rift valley. [6]

= Details = Give Reasons (because…)

Able to check (c) on your own??

formation = step by step, how it happens

1st) Where it happened?

MIDDLe) What Happened? - what forces? what processes?

last) describe feature + it is formed over time

Page 49: Plate tect go through revision

use what you have learnt from your mistake and try:

"

Naval base qns 6A "

within 7 mins

Page 50: Plate tect go through revision

Let’s go through your answer

Page 51: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

What happened? (process, force)

Page 52: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

What happened? (process, force)

Page 53: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= Give Reasons (because…)

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

What happened? (process, force)

Page 54: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= Give Reasons (because…)

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

What happened? (process, force)

Page 55: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

What happened? (process, force)

Page 56: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start pointAt a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

What happened? (process, force)

Page 57: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

What happened? (process, force)

Page 58: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

2 marks = 2 steps

What happened? (process, force)

Page 59: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

2 marks = 2 steps 1 mark

What happened? (process, force)

Page 60: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

2 marks = 2 steps 1 mark

: convergence oceanic-continental plate boundary

What happened? (process, force)

Page 61: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

2 marks = 2 steps 1 mark

: convergence oceanic-continental plate boundary

: SUbduct

What happened? (process, force)

Page 62: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

compressional forcesOceanic plate denser than continental plate

Page 63: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

compressional forcesOceanic plate denser than continental plate

Page 64: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

compressional forcesOceanic plate denser than continental plate

Page 65: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

compressional forcesOceanic plate denser than continental plate

Page 66: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start pointAt a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

compressional forcesOceanic plate denser than continental plate

Page 67: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

compressional forcesOceanic plate denser than continental plate

Page 68: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

compressional forcesOceanic plate denser than continental plate

Page 69: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

2 marks = 2 steps

compressional forcesOceanic plate denser than continental plate

Page 70: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

2 marks = 2 steps 1 mark

compressional forcesOceanic plate denser than continental plate

Page 71: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

2 marks = 2 steps 1 mark

: convergence oceanic-continental plate boundary

compressional forcesOceanic plate denser than continental plate

Page 72: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary

Subduct = oceanic plate sink and go beneath continental plate

Planning

2 marks = 2 steps 1 mark

: convergence oceanic-continental plate boundary

: SUbduct

compressional forcesOceanic plate denser than continental plate

Page 73: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

Subduct = oceanic plate sink and go beneath continental plate

As the oceanic plate is denser than the continental plate,

Writing

Page 74: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

Subduct = oceanic plate sink and go beneath continental plate

As the oceanic plate is denser than the continental plate,

Writing

Page 75: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

Subduct = oceanic plate sink and go beneath continental plate

As the oceanic plate is denser than the continental plate,

Writing

Page 76: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

Subduct = oceanic plate sink and go beneath continental plate

As the oceanic plate is denser than the continental plate,

Writing

Page 77: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start pointAt a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

Subduct = oceanic plate sink and go beneath continental plate

As the oceanic plate is denser than the continental plate,

Writing

Page 78: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

Subduct = oceanic plate sink and go beneath continental plate

As the oceanic plate is denser than the continental plate,

Writing

Page 79: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

Subduct = oceanic plate sink and go beneath continental plate

As the oceanic plate is denser than the continental plate,

Writing

Page 80: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

Subduct = oceanic plate sink and go beneath continental plate

2 marks = 2 steps

As the oceanic plate is denser than the continental plate,

Writing

Page 81: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

Subduct = oceanic plate sink and go beneath continental plate

2 marks = 2 steps 1 mark

As the oceanic plate is denser than the continental plate,

Writing

Page 82: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

Subduct = oceanic plate sink and go beneath continental plate

2 marks = 2 steps 1 mark

: convergence oceanic-continental plate boundary

As the oceanic plate is denser than the continental plate,

Writing

Page 83: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

Subduct = oceanic plate sink and go beneath continental plate

2 marks = 2 steps 1 mark

: convergence oceanic-continental plate boundary

: SUbduct

As the oceanic plate is denser than the continental plate,

Writing

Page 84: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

the oceanic plate sink and go beneath continental plate

As the oceanic plate is denser than the continental plate,

Writing

Page 85: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

the oceanic plate sink and go beneath continental plate

As the oceanic plate is denser than the continental plate,

Writing

Page 86: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

the oceanic plate sink and go beneath continental plate

As the oceanic plate is denser than the continental plate,

Writing

Page 87: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

the oceanic plate sink and go beneath continental plate

As the oceanic plate is denser than the continental plate,

Writing

Page 88: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start pointAt a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

the oceanic plate sink and go beneath continental plate

As the oceanic plate is denser than the continental plate,

Writing

Page 89: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

the oceanic plate sink and go beneath continental plate

As the oceanic plate is denser than the continental plate,

Writing

Page 90: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

the oceanic plate sink and go beneath continental plate

As the oceanic plate is denser than the continental plate,

Writing

Page 91: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

the oceanic plate sink and go beneath continental plate

2 marks = 2 steps

As the oceanic plate is denser than the continental plate,

Writing

Page 92: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

the oceanic plate sink and go beneath continental plate

2 marks = 2 steps 1 mark

As the oceanic plate is denser than the continental plate,

Writing

Page 93: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

the oceanic plate sink and go beneath continental plate

2 marks = 2 steps 1 mark

: convergence oceanic-continental plate boundary

As the oceanic plate is denser than the continental plate,

Writing

Page 94: Plate tect go through revision

Naval Base Qns 6A

Explain why oceanic plates subduct under continental plates and identify the resulting landform at the subduction zone. [3]"

= GIMME the name!= Give Reasons (because…)

1)Start point

2) End point

At a convergence oceanic-continental plate boundary, compressional forces push the oceanic plate and continental plate against each other.

the oceanic plate sink and go beneath continental plate

2 marks = 2 steps 1 mark

: convergence oceanic-continental plate boundary

: SUbduct

As the oceanic plate is denser than the continental plate,

Writing

Page 95: Plate tect go through revision

More practices if you’re done