Something that takes the shape of whatever they are in:
liquid
Air that is floating around us and has no shape:
gas
a gas that turns into water when it is cooled:
steam
made of different kinds of things:
mixed
to make less warm:
cooled
to become larger or to move into more places:
spreads
something that always holds its shape no matter how hard it is pushed or pulled:
solid
bubbles of gas in a liquid that make a hissing sound:
fizz
Everything on Earth is made up of something called:
matter
to make hot:
heated