Plate Boundaries
Plate boundaries that spread apart.
What are divergent boundaries?
What are trenches?
The process occurring in the mantle that is the driving force behind plate tectonics.
What are convection currents?
This part of the Earth heats up the mantle and causes convection currents.
What is the core?
Plate boundaries that collide.
What are convergent boundaries?
The plane along where the rock or crustal material has been fractured.
The process of old sea-floor being recycled and going into the mantle.
What is subduction?
This is driving force of convection currents.
What is gravity?
This scientist came up with the idea of continental drift.
Who is Alfred Wegener?
Plate boundaries that slide past each other.
What are transform boundaries?
The rock material that lies above the fault plate.
What is the hanging wall block?
This is the process of new ocean crust being created and spreading.
What is sea-floor spreading?
This is the movement of minerals in the mantle when they are heated up.
What is rise?
This is the name of the area around the Pacific Ocean known for its volcanic activity.
What is the Ring of Fire?
This type of plate collision causes earthquakes.
What are transform boundaries?
The rock material that lies below the fault plane.
What is the footwall block?
What is shrinking?
This is the movement of minerals in the mantle when they are cooled down.
What is sink?
This part of the Earth contains the crust and a tiny part of the upper mantle.
What is the lithosphere?
This type of plate collision causes mountains.
What are convergent boundaries?
The name of the fault in Southeastern Missouri.
What is New Madrid?
This is happening to the size of the Atlantic Ocean.
What is growing?
Convection currents cause the movement of these.
What are tectonic plates?
The theory that the plates were once a large landmass that has moved to their current location.
What is continental drift?