Most groups today got their penny/washer/vinegar battery to work today, creating enough voltage to power an LED. I had a big moment of pride for my students seeing their hard work. This and the pencil-lead lightbulb project reminds me of watching MacGyver (I am a child of the 80s) making useful items out of everyday items.
After investigating different electrode/electrolyte combinations, we began a discussion about building our battery. The goal will be to have enough cells in our battery to power a LED.
This share & compare exercise was an excellent way to discuss in context, magnitude, electric potential, and connecting with our prior class investigation, building an incandescent lightbulb.
Somehow the month of October has come and gone!
Today we are working on a new build, “Building a Battery from Everyday Objects” Students prepped one of the materials for this build recently, and we discussed the process and the observations that they made during the process. These qualitative observations will then lead into our discussion of chemical reactions.
Then after whiteboarding their observations we created a group document in Google Docs, allowing students to go back and reflect on observations that they either missed or failed to initially document.