Thermal convection in liquids and gases

Principle

The students should recognize that heating of liquids or gases causes a current since the heated medium has a lower density than the cold one and, thus, rises.
In closed systems this leads to circulation. The current transports heat energy.

Task

How is heat transported in liquids and gases?

1. Observe the behaviour of water during heating.
2. Observe the behaviour of air during heating.

Literature for this article als follows

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