Category:State of Matter

A state of matter is the state of an object. This usually refers to whether they are a solid, liquid, gas or plasma. Which they are depends on what temperature the object is when it changes its state depending on which change it is going through it is called something different. A change from solid to liquid is called melting the other way round is called freezing. A change from solid to gas is called sublimation the other way round is called deposition. The change between liquid and gas is called evaporation when the liquid changes into gas and condensation when the gas changes into liquid. From gas to plasma it is called ionization when it plasma is changing into plasma it is called deionization.