Restless Earth - Constructive plate boundary Flashcards
1
Q
What happens at a constructive plate boundary - STEP 1?
A
The convection currents in the mantle cause the plates to move apart.
2
Q
What happens at a destructive plate boundary - STEP 2?
A
This movement can trigger earthquakes.
3
Q
What happens at a destructive plate boundary - STEP 3?
A
Magma rises up to fill the gap created by the plates moving apart.
4
Q
What happens at a destructive plate boundary - STEP 4?
A
After several eruptions the lava builds up to form a shield volcano.
5
Q
Describe the diagram…
A
2 arrows moving away from each other.
A wide gap down the middle.
A volcano across both sides.
