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Chemistry
Jamal Vargas
17 March, 23:24
Why do convection currents form
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Wilson
18 March, 02:08
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Convection currents can happen in liquids and gases. For example when air is heated it becomes less dense and rises. This means that cooler more dense air comes down and is also heated rising up above more cooler air etc. This creates a convection current.
Here is a diagram of a hot water tank heater:
(sorry it isn't that great I did it myself just now)
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