Question

match the column
column- A

1. expansion
2. contraction
3. Baking of cake
4. clay modelling
5. Burning of a piece of wood

column- B

a. chemical change
b. physical and reversible
C. physical but irreversible
d. caused by heating and reversible
e. caused by cooling and reversible ​

Answer 1

ANSWER:

1. D

2.E

3.A

4.C

5.B

Answer 2

Answer:

1.) expansion - caused by heating and reversible.

2.) contraction - caused by cooling and reversible

3.) Baking of cake - chemical change

4.) clay modelling - physical but irreversible

5.) Burning of a piece of wood - physical and reversible.

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