clouds
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Hot-air balloons can rise up into the air because hot air is lighter, allowing it to float up into the sky.
Hot air
Mostly get hot and rise.
yes
Hot air rises. As air is heated, it becomes less dense and therefore more buoyant, causing it to rise. This is due to a difference in temperature creating a temperature gradient, leading to the movement of air.
HOT rises COLD sinks
cause im hot
if you mean how the hot air in a hot air balloon makes it rise, its because hot air is less dense than cold air. when cold and hot air meet the cold air sinks thus making hot air left to rise.so when you put hot air in a balloon the air would rise. hope this helps.
There are many chemicals found in a hot air balloon to make it rise. The main elements/chemicals are Helium and Hydrogen.
Convection
Hot air rises and cold air falls.