| ActivityWhere's the Plug? | Your teacher will have one or more students come up to the front of the class to turn on and off, then unplug, a number of familiar pieces of electronic equipment such as those shown below. | |
| Materials- electric pencil sharpener
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| With your group discuss the following questions. | |
| - Where is the plug to make these items work?
- What do you know about alternative sources of energy?
- Try to come up with as many sources of energy as you can.
| | Observe what the teacher does. | |
| When your teacher reached to "turn off" and unplug the moving student, in the same way that the students did with the electronic equipment, what happened? | |
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