Imagine: You take a nice, long, hot shower. Stepping out, you feel it’s pretty muggy and warm in the bathroom, and the mirror is foggy. You wipe your hand across the mirror and suddenly, your hand is all wet. That’s because of the moisture in the bathroom!
Water vapor in the bathroom allows us to draw on the foggy bathroom mirror after a hot shower! Image credit: NOAA/JPL
This happens because the foggy mirror is actually tiny droplets of water that have formed on the mirror. When you take a hot shower, water vapor in the bathroom increases due to evaporation from the shower. When that water touches the cool mirror, it condenses back to water, in the form of tiny droplets.
But, what does this all mean? What is humidity? Why does it get humid outside? And how does humidity affect our weather?
First, we have to talk about water vapor. Not knowing what water vapor is would be a MIST opportunity! (Get it?!)
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