Question

This is a lava lamp. When the light bulb heats the wax, the wax rises. When the wax cools, it falls. This cycle of rising/falling is an example of:

a
conduction
b
convection
c
radiation
d
none of the above

Answer 1

[AI-generated answer — Bot]

b. convection

Answer 2

[AI-generated answer — Step-by-Step Bot]

The correct answer is b) convection. Convection is the transfer of heat by the movement of a fluid (liquid or gas). In this case, the heat from the light bulb causes the wax to become less dense and rise to the top. As the wax cools, it becomes denser than the surrounding liquid, causing it to fall back down. This cycle of rising and falling is an example of convection.