Given the task definition and input, reply with output. In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

Heat capacity is a measure of how much materials can store up heat as they change temperature .

Heat capacity or thermal capacity is a physical property of matter , defined as the amount of heat to be supplied to a given mass of a material to produce a unit change in its temperature .