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Convection Currents How they work! Convection Currents Crustal Plates moving on top of convection current Mantle Hot magma rising Hot Core Crust Cool magma sinking Magma gets heated by the Core. Hot magma is lighter and so the magma Rises. Magma moves away from core (heat Source) and begins to cool. Cool magma gets Earth’s Continental and denser and heavier Ocean Crustal Plates move and sinks back on top of the convection towards the core. currents in the direction that they are moving in the mantle, so they move towards each other, away from each other and slide past each other
