your asking the wrong website
Warm air is less dense (lighter) than cold air..that is why warm air rises and cold air settles
Ice is a solid less dense than the liquid
Continental rock is less dense than mantle rock.
Crustal rock is normally less dense than mantle rock.
Yes.
No. Magma varies in density, but it will be less dense than a solid rock of the same composition.
Cold air is more dense than warm air.
yes
it rises
No, hot air is less dense than cold air.
True... warm water is less dense than cold water.
Yes, because the higher the temperature, the faster and more spread out the molecules, therefore making hot water less dense than cold water.