"The concepts of evaporation and condensation are contrasted. The energy transfer that accompanies changes of state is related to numerous everyday examples, such as refrigeration, cooking, and cloud formation."@en . . . . "Heat change of state"@en . "Heat change of state" . . "Change of state" . . . . . . . . . . . . . . . . . . . . . . . . "Heat, change of state"@en . "A clear and concise explanation of heat's role in the change of state, presented in a college physics class, shown by experiments and demonstrations." . . . . . . "Physics." . . "M & M Enterprises." . . "Science Experiments." . . "Matter Properties." . . "Heat." . .