Electricity wasn’t invented by humans. It is something that has been around since the beginning of time. Some of the first known observations of electricity include the Egyptians finding a species of fish that was electrically charged and could shock people. Can you imagine how “shocked” they were over that?? (Grant thought this was the corny-est line EVER. .but he did elicit some laughs from the crowd-much to his annoyance!) Lightening is another phenomenon that has been observed for thousands of years. But it wasn’t until about the year 1600 that anyone actually recorded their studies about electricity. About 150 years later, someone you’ve all heard about by the name of Benjamin Franklin tried to demonstrate the electrical properties in lightening by flying a wet kite in a thunderstorm. I wouldn’t try that at home if I were you!!
Electricity is a natural force that is all around us. .all the time. Perhaps the easiest experiment to learn about “static” electricity is one you all have probably already tried yourselves. You’ll use a balloon that has been aired up. Rub it on your head at least 20 times. .now place it against the wall. .The electrical charge built by the friction of your head is what holds the balloon to the wall. Cool, huh??
Pretty cool right?? A second type of circuit is the parallel circuit. .Components are connected in parallel (show them with your hands what parallel looks like) then the same voltage is applied to each component at the same time. Watch as I light up two bulbs with this parallel circuit.
So, I hope that the next time you turn on the light in your room, you might stop to think a minute about what an awesome phenomenon electricity REALLY is. .are there any questions?