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State two types of physical changes that may take place when a substance is
heated
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Answer:
The two changes that may take place are :
Explanation:
The physical change is a change in which no new substance is formed.
Thus,
Two changes that may take place when a substance is heated are :
1 - > Change of ice to liquid and liquid to steam while heating
When we heat ice cubes they are converted into liquid and then into steam on further heating.
2- > Heating of iron to form sheets
When we heat iron, it looses its strength and can be made into sheets
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change of matter,
in some cases like iron expands in heating
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