Write the changes which cannot be reversed?
Answers
Irreversible changes
Answer:
To walk through a waterlogged area, you usually shorten the length of your dress by folding it. Can this change be reversed?
Answer: Yes
You accidentally dropped your favourite toy and broke it. This is a change you did not want. Can this change be reversed?
Answer: No
A drawing sheet changes when you draw a picture on it. Can you reverse this change?
Answer: If the drawing is made by pencil, then the change can be reversed. If the drawing is made by using water colour or oil colour, then the change cannot be reversed.
Some changes are listed in the following table. For each change, write in the blank column, whether the change can be reversed or not.
Change Can Be Reversed (yes/no)
The sawing of a piece of wood No
The melting of ice candy Yes
Dissolving sugar in water Yes
The cooking of food No
The ripening of mango No
Souring of milk No