Standard Science Primary 5 Cycles

Mist is often seen forming above a cup of hot tea. Which of the following correctly describes the formation of the mist?

A Hot water vapour from the tea loses heat to the cooler air and condenses into water droplets.
B The tea boils and releases tiny tea leaves into the air.
C Cool air from the surroundings gains heat from the tea and turns into mist.
D Steam from the tea turns into mist.
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Worked Solution

Step 1: Hot tea releases invisible water vapour. Step 2: Water vapour rises and touches the cooler surrounding air. Step 3: Vapour loses heat and undergoes condensation. Step 4: It forms tiny liquid water droplets, which we see as mist.

Correct answer: Hot water vapour from the tea loses heat to the cooler air and condenses into water droplets.

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