Electricity! Sparking Interest
Today’s lesson was all about electricity. Students learned what electricity is made of, and how it relates to atoms, the building blocks of all physical matter. We discussed that electricity is the flow of electric charge, usually electrons, called current and reviewed how batteries work.
Students were then challenged to make a complete circuit to light up an output device, in this case a light bulb. They really had to take charge and include a light switch in their circuits. We then experimented with hooking up more than one battery in a row, or in “series,” and discovered that it made the light bulb brighter because two batteries in a row have twice the voltage, so the electrons are pushed through the light bulb with more force.
Finally, we tried to use lemons as a power source, but sadly we could not light the bulb even with eleven lemons in series. Still, we had fun trying!