Hydrogen is the least dense gas.
Hydrogen (gas)Oxygen (gas)PumiceWater (liquid)GraniteSteelLeadGold
solid, liquid then gas
Gas planets are least dense.
The order is: - solid (the densest) - liquid - gas - plasma
The gas molecules go upward. Sorry I dont have any more information but this was all I ould find out
Hydrogen (gas)Oxygen (gas)PumiceWater (liquid)GraniteSteelLeadGold
solid, liquid then gas
'Least' is a comparison word. Compared to iron and lead yes cotton is least dense. Compares to oxygen gas and hydrogen gas, no it is not least dense.
Gas planets are least dense.
Gas
Saturn is the least dense of the gas giants, even out of all of the planets in our solar system. Its average density is around 0.7 g/cc (less than water).
The order is: - solid (the densest) - liquid - gas - plasma
Saturn is the least dense planet in our solar system.
Heated particles are not actually lighter. What happens is that heated particles require more area. This increase in area is observed as an increase in volume. This reduces the number of particle in a given space. This means that the heated air is less dense. Due to buoyancy, things that are less dense "float" on top of denser things. This is why a hot air balloon rises.
The molecules are farther apart in a gas.
bubbles rise to the surface of a heated liquid as it changes to gas because they are less dense than the liquid.
Gas as the particles move freely of one another.