Tides

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Summary:
We moved on to our next topic today: tides. I gave a lecture to students, using the PowerPoint posted below, that covered quite a bit of ground. We discussed what tides are, how they are caused by the moon’s gravity, why they switch roughly every six hours, and how the sun influences things too. We also talked about a strange example, the Bay of Fundy, where tides can vary by as much ass 55 feet! Then we finished off with a quick engineering competition. The goal? Protect Marshfield from our rising tides.

Resources:
February 15 – Tides Notes (pg509).pptx

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