Standard Science Primary 4 Energy

Ravi is using a laboratory thermometer to measure the temperature of boiling water. Which of the following is the correct way to read the thermometer?

A Read the temperature immediately after dipping it in.
B The bulb should touch the bottom of the beaker.
C Keep the eye level with the top of the liquid column.
D Remove the thermometer from the water before reading.
Show Worked Solution

Worked Solution

Step 1: Avoid parallax error by keeping eyes level with the meniscus. Step [2-9]: Keep the bulb submerged in the liquid while reading.

Correct answer: Keep the eye level with the top of the liquid column.

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