Question

Can you create a convection current if the heat source is at the top? Explain.

Answer 1

Convection currents are flowing fluid that is moving because there is a temperature or density difference within the material. Because particles within a solid are fixed in place, convection currents are only seen in gases and liquids. A temperature difference leads to energy transfer from an area of higher energy to one of lower energy. Convection occurs until equilibrium is reached.