Page 11 - Think About Amazing Wonderful Water

WATER BOILS AT DIFFERENT

TEMPERATURES

Why?

Because of air pressure, �\

and evaporation. �

At sea level heat is lost 68 deg

Celsius
more slowly because it �

presses down on the

evaporating water.

Higher up, less

pressure means

faster evaporation.

100 deg If we increase
Celsius �l { air pressure, we
l
c::: also raise the

boiling point.

Mountaineers have to use

kerosine or other fuel to keep a

fire burning.