Day 3: Battery Design

Instructions (Part I): Consider all everyday devices that run on battery power: mobile phones, bluetooth speakers, television remotes, wall clocks, cameras, flashlights, computer mice, etc. The invention of the battery has allowed engineers to develop all kinds of technology to help and entertain us. Have you ever thought about how these batteries work? Carefully view the below video to learn more. 

Instructions (Part II): As the video above demonstrates, you can create your own batteries using just three simple ingredients: two types of metal for the electrodes and an electrolyte. Commonly, copper and zinc are used as metals, while the electrolyte could be any moist substance that is slightly acidic or basic, such as saltwater. To set up your battery, follow the instructions in the video below to light an LED, using small balls of Play-Doh as your electrolyte instead of lemons. Experiment with the number and size of your battery cells until the LED lights up.

Instructions (Part III): . Record a video of your battery operating. Type your first name in the “Subject” area. A QR code is provided below for ease of upload. 

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