A student places a large pot of cold water on a stove and heats it for one minute. Then she takes the pot of water off the burner and places it on the counter. Which best describes the convection currents?
Answer
A
Convection currents move thermal energy from the stove to the pot, and then from the pot to the water.
B
After the stove is turned off, convection currents continue to transfer energy through the water for a period of time.
C
Convection currents in the water cause warmer, denser water to rise and transfer energy upward.
D
When the stove is turned on, convection currents cause an increase in the chemical energy of water molecules.