The basic principle behind a freezer is evaporation. When a liquid
evaporates it causes the surrounding area to cool. For example, on a hot
summer's day if you sprinkle water on your skin it will cool your skin as
you evaporate. That's an example of refrigeration!
evaporates it causes the surrounding area to cool. For example, on a hot
summer's day if you sprinkle water on your skin it will cool your skin as
you evaporate. That's an example of refrigeration!