Most of what goes on in the universe--from exploding stars and biological
growth to the operation of machines and the motion of people--involves
some form of energy being transformed into another. Energy in the form
of heat is almost always one of the products of an energy transformation.
NSES Content Standard B
Physical Science: Transfer of energy Grades 5-8, page 155 Electrical circuits provide a means of transferring electrical energy when heat, light, sound, and chemical changes are produced. NSES Content Standard B
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