In this quiz, students will identify the position of an object's shadow caused by a natural or an electric light source. Children will also learn how the brightness of light affects the shadow of an object. In the practical part of the quiz, students will use their E-Blox construction sets to build a light dimmer circuit. A motor will be used in this circuit to limit the flow of electricity that goes to the lamp. Children will see that by changing the amount of electricity that reaches the lamp, we can control its brightness.
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