Structure Of Earth And Plates

Question 1

What happens at convergent boundaries?

Answer 1

At convergent boundaries, the high-density ocean floor is being dragged down by a downward gravitational force (slab pull) beneath the adjoining continental crust.

Question 2

What is the core?

Answer 2

Hottest part, inner core is solid outer is liquid

Question 3

What is the mantle?

Answer 3

Surrounds the core, semi solid rock

Question 4

What is the lithosphere?

Answer 4

Very thin outer shell which we live on. Broken into tectonic plates

Question 5

What is a continental plate?

Answer 5

Thick, older and lighter so don’t sink

Question 6

What is an oceanic plate?

Answer 6

Thinner, younger and denser do sink

Question 7

What happens at a destructive/convergent plate margin?

Answer 7

The oceanic plate slides beneath the continental plate. The point at which this happens is called a subduction zone.
The rocks catch against one another as the plates are not smooth surfaces.
The pressure between the plates builds until the plates can’t take the stress.
They slip past each other, which can cause both plates to move and, as a result, the ground may shake (earthquake).

Question 8

What happens at a constructive/divergent plate margins?

Answer 8

At constructive plate margins, the plates move apart (diverge).
The convection currents diverge (push apart) and cause a gap to form between the plates.
Magma rises up to fill the gap that is created between the 2 plates.

Question 9

What happens at conservative/transform plate margins?

Answer 9

At conservative plate margins, plates are sliding past each other.
The plates are made of rock that has jagged edges so they catch and snag against one another.
Friction and pressure between the plates builds until the plates can’t take the stress.
They slip past each other, which can cause both plates to move and, as a result, the ground may shake (earthquake).