Question

Ln 6-CHANGES AROUND US
I. MULTIPLE CHOICE QUESTIONS: (1 MARK)
1. Rusting of iron is an example of
c) physical change
d) Reversible change
a) Slow change
b) fast change
2. What kind of change occurs in the rising of sun
a) Periodic change b) physical change
c) Sudden change
d) Reversible change
3.Pick the change that can be reversed from the following
a) Melting of ghee
b) cutting of trees C) Blooming of flower d)Burning of candle
4. When water is heated, it changes into steam (vapour). This process is known as
a) Evaporation
b) condensation c) freezing
d) sublimation
5. An Iron ring is heated. Which of the following statements about it is incorrect?
a) The ring changes its shape
b) The ring expands
c) The ring almost comes to the same size on cooling d)The change in this case is reversed​

Answer 1

Answer:

a

Explanation:

when we rust iron I does not become as it as

Answer 2

Answer:

1. a

2. a

3. a and d

4. a

5. b

Explanation:

1 . rusting is a very slow process

2 .As it rises and sets then again the process goes on

3.as melted ghee and wax can be obtained by solidifing the liquid form

4. the process of changing of water into water vapour is called evaporation.

5.metal expands on heating.

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