Maslow's Hierarchy of Needs. Definition. Maslow's hierarchy of needs is a theory of motivation and personality developed by the psychologist Abraham H. Maslow (1908â1970). Maslow's hierarchy explains human behavior in terms of basic requirements for survival and growth.
When you use ice to cool the ingredients for ice cream, the energy is absorbed from the ingredients and from the outside environment (like your hands, if you are holding the baggie of ice!).
Since this energy is used to break bonds, it can't heat the ice. The heat energy absorbed during melting of ice is used up in breaking the bonds between the water molecules.In other words the heat increases the potential energy only and not the kinetic energy and hence there is no temperature rise.