Where do convection currents occur? Why do they occur? a
Convection currents happen in the crust. As oceanic crust heats from the core, this causes the magma to get less dense. This
causes the magma to rise. As the magma rises, it cools and becomes less dense. This makes oceanic crust.
Convection currents happen in the inner core. The iron has so much pressure and causes p waves to move. We call these
convection currents.
Convection currents happen in the mantle. As magma heats from the core, this causes the magma to get less dense. This causes
the magma to rise. As the magma rises, it cools and becomes less dense. The crust also forms a barrier that pushes the cooling
crust across the layer. As it keeps cooling it sinks back towards the mantle. The process repeats.