Question

2 differences between expansion and contraction.​

Answer 1

Answer:

The increase in the size of an object on heating is called expansion whereas, the decrease in size of an object on cooling is called contraction. 2. An example of an expansion is an extra three rooms built onto a house whereas, An example of contraction in a liquid is a thermometer.

Explanation:

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Answer 2

Explanation:

The increase in the size of an object on heating is called expansion whereas, the decrease in size of an object on cooling is called contraction. 2. An example of an expansion is an extra three rooms built onto a house whereas, An example of contraction in a liquid is a thermometer.