Question

B. FIII in the blanks.
1. Changes which are useful to us are called
changes.
2 Growth of plants is a
change
3. Change of state is an example of
change
is a chemical change in which iron reacts with moisture and oxygen to
form iron oxide.
5. Curdling is a
change
to. When the thermometer is kept in contact with a hot body, the
heat and expands.
absorbs​

Answer 1

1)desirable change

2)natural change.

3)physical change

4)exothermic change

5)milk to semi solid mass - chemical

true.

Answer 2

Explanation:

1. Changes which are useful to us are desirable changes

2. Growth of plants is a slow change

3. Change of state is an example of physical change

4. Rusting is a chemical change in which iron reacts with moisture and oxygen to form iron oxide.

5. Curdling is a chemical change

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