Tectonic Movement

Question 1

Slab Pull

Answer 1

As a result of subduction of oceanic plate, rest of plate is pulled along with it into subduction zone

Question 2

Subduction

Answer 2

Denser plate undercutting less dense plate into upper mantle

Where it melts is called subduction zone

Question 3

Mantle Convection

Answer 3

Magma moves in circles due to heat in mantle

Circular movement is called convection currents

Question 4

Seafloor Spreading

Answer 4

Magma forced up from mantle hardens to form new oceanic crust

New crust forces plates apart

Question 5

Paleomagnetism

Answer 5

Magnetic poles switch every 200,000 years

Can be seen due to minerals in new crust from seafloor spreading lining up with poles