because its evaporating
The air/liquid heats up causing it to rise at the top it cools down causing it to sink. At the bottom it rises again because it heated then it rises up causing it to sink because it has cooled down. The pattern will go until the heat is stopped.
When water is heated, it becomes thinner because the molecules move further apart, decreasing its density. This is why hot water rises above colder water.
The air/liquid heats up causing it to rise at the top it cools down causing it to sink. At the bottom it rises again because it heated then it rises up causing it to sink because it has cooled down. The pattern will go until the heat is stopped.
When magma is being heated it rises. When it is cooled, it sinks.
This is an example of convection heat transfer. The sun heats up the sand, causing it to become hot. The air above the sand then also heats up, becomes less dense, and rises, creating an updraft that lifts the kite.
For The conventional oven, there would be convection that heats and re-heats the air. As the heat rises, it peaks and cools, then drops back down just to be heated up again.
When air is heated, it becomes less dense and expands. Since warmer air is less dense than cooler air, it rises above cooler, denser air. This movement of warmer air creates convection currents, where the heated air rises and the cooler air sinks.
when land is heated, the air above it also gets heated, which makes it to start rising. This is due to the fact dat hot air is lighter dan cold one. this gives rise to a phenomenon nwn as convection current. this is the reason of presence of moderate climate in coastal areas.
rises because the water expands when heated, causing an increase in volume which leads to a higher level in the tube.
As air (unconfined), is heated its volume increases, and its density decreases. That makes it lighter (per volume) than it was. Warm air will rise above colder air, and in essence, float on top of the colder air.
No
bollons