Haikal's video

Earthquake and Tsunamis

Eq and tsunamis from estee seetoh

Shield and Strato volcano diagram

Lava flow video

Types of Volcanoes

Shapes and sizes of volcanoes

•Volcanoes vary in shapes and sizes due to the characteristics of the lava.

•Viscosity refers to the stickiness of the lava

•The most common types of volcanoes are:

    - Shield volcanoes; and

    - Strato volcanoes

Danial's video
http://study.com/academy/lesson/types-of-volcanoes-shield-cinder-cones-composite-cones.html#lesson

Watch this video from Danial and answer :

1.Shield volcano – Shape and size

2.Strato volcano – shape and size

3.Which is more explosive?

Individual Task:

1. Complete P59 - Compare between a Strato and shield volcano [4]

2. Draw a strato and shield volcano on top empty space of P59

(Show Miss ST completed work before proceeding to computers)

Computer Task:

1. Mark Answers for P59. Refer to class blog 'Volcanoes ppt' posted on 18 March on Slide 17

2. Complete ALL corrections 

3. Hand up resource pack (for PTM tmr)

Jarell's video

Volcanoes ppt

Answers to P54

8 With the aid of a well-labelled diagram, explain the formation of fold mountains at a continental-continental plate boundary. [4]

•2m (diagram) , 0.5m for each point below

•Two continental plates may collide with one another, resisting subduction.

•This causes the plates to break and slide along fractures in the crusts.

•When continental Eurasian plate converge with continental Indian plate,

•the crusts are compressed and they fold upwards or sideways to form fold mountains

P54 Q9

Explain how the plate movement taking place at a  continental-oceanic plate  boundary may produce fold mountains.   [4]

•When an oceanic plate converges with a continental plate

•The denser oceanic plate subducts under the less dense continental plate

•As the continental plate rode over the oceanic plate, the sediment on the ocean floor buckled and crumpled

•This cause an uplift of the crust into the fold mountains

Common test answers from estee seetoh

San Andreas Fault - Transform Boundary Qn

(i) Describe the appearance of the fault and its surrounding landscape. [4]

 Appearance
 • Long/linear 
 • Narrow 
• Deep valley 
• Fault line offsets to the right 
• Presence of river within the fault 

 Surrounding landscape
• Hills are dissected 
• Surrounding lands are highland 
• Presence of some vegetation max4@1 mark 

 (ii) Explain how an earthquake may occur at this type of plate boundary. [4]

 • The 2 plates are sliding past each other in opposite direction.
 • There is a lot of friction and the movement is not smooth. 
 • Stress build up 
 • Over time, shock is suddenly released resulting in earthquakes.

Transform boundary

Transform from estee seetoh