NSES Content Standard B
Physical Science: Conservation of energy and the increase in disorder Grades 9-12, page 180 The total energy of the universe is constant. Energy can be transferred
by collisions in chemical and nuclear reactions, by light waves and other
radiations, and in many other ways. However, it can never be destroyed.
As these transfers occur, the matter involved becomes steadily less ordered.
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Benchmark 4E The Physical Setting: Energy
Transformations
Grades 6-8, page 85
Heat can be transferred through materials by the collisions of atoms
or across space by radiation. If the material is fluid, currents will be
set up in it that aid the transfer of heat.
Benchmark 4E The Physical Setting: Energy
Transformations
Grades 9-12, page 86
Whenever the amount of energy in one place or form diminishes, the
amount in other places or forms increases by the same amount.