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Science CBSE Homework Assignments
Class 7
Physical and chemical changes
Changes in reaction
1.
Physical change I
Question:
3
m.
1
.
Which of the following is a reversible change?
Cooking food
Chemical changes
Burning paper
Physical changes
2
.
Boiled rice is an example of __________.
rusting
crystallisation
physical change
chemical change
3
.
Physical changes sometimes occur with change in __________.
heat
radiation
colour
light
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