Friday, September 28, 2007

Exploring Electricity

We had a great week beginning our study of electricity. I first asked our students to draw a diagram of how electricity flows from a battery to a light bulb. There were many different hypotheses among our kids. To test out our hypotheses, students were given two wires, a light bulb, and a battery. Their task was to make the light bulb come on. After several minutes, Adam and his table were able to light their bulb!

It took a little while, but every student was able to light their bulb. Several teams were able to find multiple ways for their bulbs to come on! Here is Elizabeth's drawing of the different ways we found to light the bulb...

We learned that electricity travels in a complete circuit, from one end of the battery to the other. If there is not a complete circuit (or circle), the electricity cannot flow through the receiver (in this case, the light bulb). Most of our students revised their original ideas, coming to a clear understanding of how electricity flows.

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