Check sibling questions
Class 6
Chapter 6 Class 6 - Changes around us

Some changes are listed in the following table. For each change, write in the

blank column, whether the change can be reversed or not.  

S. No.

Change

Can be reversed (Yes/ No)

1.

The sawing of a piece of wood

 

2.

The melting of ice candy

 

3.

Dissolving sugar in water

 

4.

The Cooking of food

 

5.

The ripening of a mango

 

6.

Souring of Milk

 

 

 

Answer:

SNo. 

Change

Can be Reversed (Yes/No)

Explanation

1

The sawing of a piece of wood

No

Wood once sawed cannot be reversed to its original shape and size

2

The melting of ice candy

Yes

If Ice melts it can be reversed again by cooling it

3

Dissolving of sugar in water

Yes

Dissolving of sugar in water can be reversed by heating it,water will evaporate as water vapor which turns to water again and sugar remains in the pan

4

The cooking of food

No

Food once cooked cannot be reversed again into raw food

5

The ripening of a mango

No

Mango once ripened will not turn again into a raw mango

6

Souring of milk

No

Milk once soured is irreversible as milk once soured cannot be reversed again

 

 

 

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CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Economics, Accounting and English at Teachoo