2. 1) Destructive plate boundary
Oceanic and continental, which goes
beneath the other?
Continental and continental? What
happens?
LO: What happens at different plate boundaries?
3. 1) Destructive plate boundary
When an Oceanic and Continental plate
meet, the heavier oceanic plates
subducts (sinks) beneath the lighter
continental plate. This is called a
Subduction Boundary.
LO: What happens at different plate boundaries?
5. 1) Destructive Plate Boundary
a) Subduction boundary
The oceanic plate _______ under the continental plate
because it is denser. As the plate descends it starts to melt
due to the _______ caused by the movement between the
plates.
a. Flops, heat c. descends, friction
b. hides, friction d. descends, noise
This melted plate is now hot and forms liquid ____ (magma).
The magma rises through the gaps in the continental plate. If
it reaches the ________, the liquid rock forms a volcano.
a. earth, bottom C. ice, Arctic
b. rock, bottom D. Rock, Surface
LO: What happens at different plate boundaries?
6. 1.b. Collision Boundary
• What happens when a continental and
continental plate collide?
LO: What happens at different plate boundaries?
7. b. Collision Boundary
• When ______ continental plates meet each other they
collide, rather than one ________ beneath the other. This
causes them to buckle upwards. The ________ are an example a
collision boundary.
A. Three, sinking, Thames C. Two, sinking, Himalayas
B. Two, sinking, north downs D. Five, melting, Himalayas
13. 2) Constructive Plate Boundary
• At a _________ plate boundary, two plates move apart. As
the two plates move apart, magma _____ up to fill the gap.
This causes ________ at this type of boundary.
a. Constructive, rises, volcanoes c. destructive, splashes, volcanoes
b. Constructive, builds, flooding d. constructive, pushes, rain.
• However, since the magma can ______ easily at the surface
the volcano does not erupt with much force. _________ are
also found at constructive boundaries. An example of a
constructive boundary is the Mid-Atlantic ________.
a. erupt, humans, volcano c. escape, earthquakes, ridge
b. escape, floods, mound d. move, volcanoes, Iceland
LO: What happens at different plate boundaries?
16. 3. Conservative plate boundary
• Conservative plate boundaries exist where two plates
do not directly collide but ____ past each other along
a fault (weakness).
• No _______ are found along these plate
boundaries, but earthquakes do occur. An example of
such a boundary is the San Andreas Fault in
________ .
a. slide, volcanoes, California c.
Move, earthquakes, Cowes
b. Move, volcanoes, Canterbury d. Slide, volcanoes, Cardiff
LO: What happens at different plate boundaries?
17. Homework - Past Question
• Have a go at the past exam question on your
own.
