Plate Tectonics

The movement of fluid, caused by differences in temperature, that transfers heat from one part of the fluid to another.

• Energy transfer

• Convection current

• Seismic waves

• Plate tectonics

The process by which molten material adds new oceanic crust to the ocean floor.

• Sea-floor spreading

• Rebuilding

• Convection current

• Seismic waves

A plate boundary where two plates move away from each other.

• Convergent

• Divergent

• Transform

• Normal fault

A plate boundary where two plates move in opposite directions.

• Convergent

• Transform

• Divergent

• Subduction

The theory that pieces of Earth's lithosphere are in constant motion, driven by convection currents in the mantle.

• Plate tectonics

• Convection currents

• Big Bang Theory

• Pangaea

The hot, plastic-like layer of Earth, made of magma. 

• Inner Core
• Mantle
• Crust
• Outer Core

The hot, liquid layer of Earth, made of iron and nickel.

• Inner Core
• Mantle
• Crust
• Outer Core

The dense, solid center of Earth, made of iron and nickel.

• Inner Core
• Mantle
• Crust
• Outer Core

The boundary between two plates that pull apart from one another.

• Divergent Plate Boundary
• Convergent Plate Boundary
• Transform Plate Boundary
• Subversive Plate Boundary

The boundary between two plates that collide with one another.

• Divergent Plate Boundary
• Convergent Plate Boundary
• Transform Plate Boundary
• Subversive Plate Boundary