Foundation Science Primary 4 Energy

Siti wants to measure the temperature of a glass of hot water. Where should she place the bulb of the thermometer to get an accurate reading?

A Floating on the surface of the water
B Just outside the glass touching the rim
C Completely submerged in the water without touching the glass
D Touching the bottom of the glass
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Worked Solution

Step 1: Identify the goal (measure water temperature). Step [2-9]: The thermometer bulb must be in contact with the substance being measured. Step [2-9]: Touching the container leads to inaccurate readings from the glass itself.

Correct answer: Completely submerged in the water without touching the glass

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