P129 - How changing the voltage affects how powerful a motor is

An activity where children systematically add batteries to a circuit to see how it affects the speed of a fan (motor & rotor blade).
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P128 - Light bulb brightness

An activity where children systematically add batteries to a circuit to see how it affects brightness.
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P127 - How changing the voltage affects the volume of buzzer

An activity where children systematically add batteries to a circuit to see how it affects sound.
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P205 - Successful electric circuit activities

Actions you can take before, during and after circuits lessons to help make them run smoothly.
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