| http://www.w3.org/ns/prov#value | - They may understand that substances or objects may possess various forms of energy, and that energy changes often involve a transfer of energy in the form of heat or work. (National Science Education Standards, p. 154.) Students may associate energy with force, i.e., kinetic energy or work, but they may not completely understand the first law of thermodynamics, which is that energy can???t be crea
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