Well, it all depends on what you are considering. You may be talking about the shell/body of the aeroplane which is solid, the fuel for instance which may be considered as liquid/gas, or the gas (air) inside the aircraft as gas
The four states of matter are commonly referred to as solid, liquid, gas and plasma.
In our usual experience, we only find water in all three phases, as solid, liquid, and gas. But almost any substance can exist in those phases, given the right temperature and pressure.
In chemistry, a physical change would be from Gas to Liquid (or reverse), or Liquid to Solid (or reverse).
There are three states of matter in the world (or four, counting plasma), these being solids, liquids, and gasses. As a duck is not a gas or a liquid, it would fall under being a solid.
Solid
General classes of colloids are: gas in liquid, gas in solid, liquid in gas, liquid in liquid, liquid in solid, solid in gas, solid in liquid, solid in solid.
solid
The animals are solids because they have a definite shape and volume but their tissues and cells also contain liquid (water) and gas (oxygen).
evaporation solid to liquid - melting liquid to gas - evaporation gas to liquid - condensation liquid to solid - freezing solid to gas and gas to solid - sublimation
Is a pencil a solid liquid or gas
evaporation solid to liquid - melting liquid to gas - evaporation gas to liquid - condensation liquid to solid - freezing solid to gas and gas to solid - sublimation
These nine types of solution are solid to solid solid to liquid solid to gas liquid to solid liquid to liquid liquid to gas gas to solid gas to liquid gas to gas
gas
a feather is a solid
Solid --> Liquid = melting Other changes of state: Solid --> Gas = sublimation Gas --> Solid = deposition Liquid --> Solid = freezing/solidification Gas --> Liquid = condensation Liquid --> Gas = vaporization
* solid to liquid: melting* liquid to solid: freezing* liquid to gas: vaporization* gas to liquid: liquefaction* solid to gas: sublimation* gas to solid: deposition