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The cool air will sink and the warm air will rise.
When rock in mantle cools, it sinks. When rock in mantle heats, it rises.
a stone will sink and a feather would rise
True. Cool air sinks and warm air rises.
Because thing that are denser sink. Therefore, cooler rock sinks because it is denser.
changes in buoyancy due to changes in density differences between the magma and surrounding rock.
No, molten rock is less dense than solid rock and rises through the crust.
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First, because the core is mainly liquid and the Earth is rotating. Second, The Earth get a little tug from the moon.
The cool air will sink and the warm air will rise.
When rock in mantle cools, it sinks. When rock in mantle heats, it rises.
Is it called convection?
yes
If materials get warmer, it expands; therefore the density (which is mass divided by volume) decreases.
cooler air masses sink and warmer air masses rise.
a stone will sink and a feather would rise