Since many of our schools still have classes, science and math classes should find ways to discuss the heat wave we're going through, one of the worst, maybe even the worst, in years, from identifying signs of dehydration (and emphasizing dehydration can kill), to preventing the dehydration. It's not just a matter of absolute temperatures. Weather tracking stations now calculate a heat index, which considers the temperature and humidity. The Philippines suffers from extremes using the two indicators.

https://opinion.inquirer.net/162816/heat-index

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