An explanation of how an ice cube melts in a glass of water, how solid carbon dioxide or dry ice sublimates to give a smoke effect at discos, and how sweat evaporates by taking heat energy from the skin. Animations are used to show the arrangements of particles as the changes of state occur.
- This clip is from:
- First broadcast:
- 28 February 2008
Students could make a simple particle model using building blocks, and recreate the three examples from the clip, explaining where the energy is.