nge does it represent
6. Short Answer Questions:
1. What are reversible and irreversible changes?
2. Neha's mother is sick. She makes vegetable soup for her mother and serves it.
(a) can we get the vegetables back from the soup?What type of change does it ren
(b) What value does Neha's action show?
3. Mention the ways that bring about changes.
4. Write five changes that we observe in our daily life.
5. Squeezing a sponge is a reversible change. Explain.
6. Classify the following as reversible and irreversible changes-
cooking of food, melting of wax, ripening of fruit, boiling of water to form steam, inflating
knitting of sweater, folding of paper, grinding of wheat grains
Long Answer Out
Answers
Ans1 - The changes that can be reversed
are known as reversible changes
that can not be reversed are
irreversible changes.
Ans2 (a) - No, we cannot get the vegetables back from the soup.
Ans ( b)- Neha is a careful girl. She cares
her mother.
Ans3 - The ways that bring changes
about us are growing of our hair
and growing of our nails.
Ans6 - Melting of wax, boiling of water to
form steam and folding of papar
are reversible changes. Cooking
of food , ripening of fruit,
inflating knitting of sweter and
and grinding of wheat grains are
irreversible changes.
Ans4 - 1) Blowing of ballon.
2) A piece of dough(atta).
3) Melting of ice.
4) Folding of papar.
5) Melting of ice cream.