Subject :NSO Class : Class 7
The diagram shows a boiling tube filled with water. There is an ice cube wrapped with wire gauze at the bottom of the tube, and the water at the top of the tube is heated as shown. When water at the top of the tube is boiling, the ice cube remains frozen. What can you infer from this experiment?
AHeat gain causes matter to expand.
BHeat loss causes matter to contract.
CIce cubes melt at 0°C.
DWater is a poor conductor of heat.