NSES Content Standard B Physical Science:
Light, heat, electricity, and magnetism Grades K-4, page 127 Electricity in circuits can produce light, heat, sound, and magnetic
effects. Electrical circuits require a complete loop through which an electrical
current can pass.
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Benchmark 4E The Physical Setting: Energy
Transformations
Grades 3-5, page 84
Things that give off light often also give off heat. Heat is produced
by mechanical and electrical machines, and any time one thing rubs against
something else.