Water starts boiling and bubbling
Explanation:
When liquid or gas present in the warmer areas rise to the cooler part of the gas or liquid then it is termed as convection.The gas that is moved to the cooler areas tend to move to the warmer areas once again and this pattern occurs continuously. Boiling of water in a container is a better example of the convection currents. So Water starts boiling and bubbling represents transfer of heat through convection.
