Question

At sea level, water boils at 100ºC. At an elevation of 500 meters, however, water will boil at 98.4ºC. Why do you think elevation impacts the temperature at which water boils?

Answer 1

I think elevation impacts the temperature at which water boils because...

As the altitude increases the pressure in the atmosphere decreases. This means that when the atmospheric pressure is lower, your water will reach it's boiling point faster. (AKA: at a lower temperature.)