When adding or taking away energy, in this case heat, the molecules begin to either speed up or slow down, by doing this it changes its states. So when it gets hot the water molecules begin moving so fast the it changes into gas and evaporates, for ice the molecules contract and don't move much its more of a vibrating movement.
It changes because the water get warm, with heat normally produced by the sun. And in other ways the water can freeze. And it's called phase transition.
Water starts as liquid water, evaporates into water vapor in a cloud, condenses into a liquid again, and falls as rain. That's the gist of it.
Jdiej
It may change its measurable properties but a simple state change is brought on by an increase or decrease the energy content of the material and does not alter the material from one material to another.
I think it can be classified as either a Chemical Reaction. Or an Endothermic reaction. I may not be understanding the correct queston though.
Evaporation is changing of liquid state into gaseous state. Sublimation is changing of solid state into gaseous state.
Examples:- the state of matter- the chemical composition- the chemical properties- the physical properties
Two ways in which physical state of matter can be changed:- changing the temperature- changing the pressure
If it is melting, boiling, condensing, subliming, or depositing, then it is changing state.
Motion
by changing it
Motion
changes from one state to another without a change in chemical composition
When a substance changes from one state of matter to another it is called changing its state. Temperature changes are usually the main cause of this change.
When a substance changes from one state of matter to another it is called changing its state. Temperature changes are usually the main cause of this change.
It may change its measurable properties but a simple state change is brought on by an increase or decrease the energy content of the material and does not alter the material from one material to another.
the action of changing or the state of being changed into another form: the transmutation of the political economy of the postwar years was complete. • Physics the changing of one element into another by radioactive decay, nuclear bombardment, or similar processes. • Biology, chiefly historical the conversion or transformation of one species into another. • the supposed alchemical process of changing base metals into gold.
The word you are looking for is "transition." It refers to the process of changing from one state, form, or condition to another.
Ice melting, water boiling and cutting paper. It usually has to do with changing the shape or state of the matter.
Changing the liquid state to solid state is known as freezing, changing from solid state to liquid state is known as melting and changing from liquid or solid state to gaseous state is known as evaporation.