One of three physical forms of matter: solid, liquid, or gas.

Solid, liquid, gas and plasma. Plasma is a "soup" of diassociated nuclei and electrons, normally found only in stellar objects.

A substance can be solid, liquid or gaseous. Substances can change between states, normally when heated or cooled to increase or decrease the energy of the particles.

Solid, liquid, and gas are states of matter Liquids, solids, and gases are states of matter.

the three different forms in which matter can exist: solid, liquid, and gas

Matter can exist in four states or phases ( solid, liquid, gas, and plasma) and a few other extreme phases (like critical fluids and degenerate gases). The phase diagram of water (above) shows its phase at various temperatures and pressures.

The physical forms of matter including solid, liquid, gas, super critical fluids and plasmas.