7.9 Energy and Change of Phase

Evaporation

Evaporation is when a material moves from a liquid to gaseous phase. Evaporation is a cooling process. Duration: 5:27.

Mobile Link: http://bcove.me/zyms1l1b

Condensation and Evaporation

Condensation and evaporation occur at the same time. Condensation is a warming process, whereas evaporation is a cooling process. Duration: 6:05.

Mobile Link: http://bcove.me/kq6fkd59

Boiling

If water molecules have enough thermal energy, they can escape the liquid phase beneath the surface of the liquid. This is called boiling. Duration: 12:32.

Mobile Link: http://bcove.me/aee4p60k

KM: Shrinking Ice Cubes

Maile discovers that water in the form of ice can evaporate. So what is a frost free freezer all about? Duration: 2:16.

Mobile Link: http://bcove.me/ajcrq39o