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Subject :NSO    Class : Class 4

Prerna has 4 containers of the same size and thickness. They are made of different materials such as plastic, steel, styrofoam and glass. She poured the same amount of water at 90°C and placed a thermometer into each container. All the containers were placed in a room with the same conditions.
After 20 minutes, which of the following could Prerna observe?
1. All the thermometers will show the same temperature.
2. All the thermometers will show different temperature.
3. The thermometer in the steel container will show the least drop in temperature.
4. The thermometer in the styrofoam cup will show the highest temperature.
(a) 1 only
(b) 2 and 3
(c) 3 and 4
(d) 2 and 4


Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

Ans 2:

Class : Class 6
Can you tell the answer to this question

Ans 3:

Class : Class 6

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