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Subjects
Science State Board
Class 6
Changes around us
Changes and it's classifications
18.
Changes in substances
Exercise condition:
4
m.
Match the column A with column B:
Column A
Column B
1
.
New substances are not formed
Reversible change
Contraction
Irreversible change
Expansion
2
.
A new substance is formed in this type of change
Expansion
Contraction
Irreversible change
Reversible change
3
.
Increase in the size of a pipeline is a good example
Contraction
Irreversible change
Reversible change
Expansion
4
.
Railway track in winter is a good example
Irreversible change
Reversible change
Contraction
Expansion
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