CONDENSATION To know that condensation is the process
- Slides: 11
CONDENSATION To know that condensation is the process of gas cooling to form a liquid. Mª Teresa Villarroya I Font
WHAT IS CONDENSATION? It’s the cooling process that changes gas into liquid. It’s the opposite of evaporation.
NAME THE CHANGE LIQUID GAS EVAPORATION CONDENSATION
LOOKING AT THE OUTSIDE OF A GLASS OF ICED WATER… q What has happened ? q Why has it happened ? q What is it called ?
Iced water in a glass: Droplets of w―――― form on the outside of the glass. When water v――――― in the air hits the c――― surface of the glass it condenses into l――――― water droplets. ( liquid, water, cold, vapour )
LOOKING AT THE BREATHING ON A MIRROR… q What has happened? q Why has it happened? q What is it called?
Breathing on a mirror Water v――――― in the breath hits the cold mirror and c―――― into water d―――――――. The mirror “steams up”. After a while the liquid droplets on the mirror e―――― into the air as water vapour, and the mirror clears. ( droplets, vapour, evaporate, condenses)
LOOKING AT THE DEW ON THE GRASS n What has happened? n Why has it happened? n What is it called?
The dew on the grass n Water v――――― in the a―― hits a cold surface and c―――― into water d―――――――. (condenses, air, vapour, cold, droplets)
LOOKING AT THE FROST ON THE TREE n What has happened? n Why has it happened? n What is it called?
The frost on the tree n When temperature is b―――― 0ºC, water v――――― in the a―― hits the cold surface and c――――――― into a t――― white layer of i――. ( condenses, below, ice, air, vapour, thin)
