Q1
Why is touch not a reliable way to measure temperature?
AIt is relative and can be misleading
BIt is always perfectly accurate
CIt works only for hot objects
DIt works only for cold objects
CBSEClass 6 (CBSE)ScienceCh 7 · Topic 1
Hot and Cold - A Relative Sense
Understanding why touch alone is not a reliable way to judge temperature.
Core concept
This experiment proves that touch alone cannot give an accurate, consistent temperature reading, which is why scientists rely on measuring instruments like thermometers instead of relying on their sense of touch. This is an important scientific principle: personal senses can be biased or inconsistent, so objective, measurable instruments are needed for reliable, comparable results in any experiment.
Exam highlight
Key diagram
- Show the three-bowl experiment illustrating why touch alone is unreliable for measuring temperature.
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Study resources
Notes & downloads
Quick notes
• Touch is a relative sense and can give misleading temperature judgments.
• The three-bowl (hot/cold/room-temperature water) experiment demonstrates this unreliability.
• The same room-temperature water can feel warm to one hand and cool to another, depending on prior exposure.
• Scientific measurement uses instruments like thermometers instead of relying on touch.