Question

Science worksheet

1.Classify the following changes as reversible or irreversible.
a. Digestion of food in our body.
b. Fermentation of food.
c. Melting of ice cream
d green plants making their own food.

2. Fill in the blanks
a wax is _______ in water.
b. Dissolving of salt in water is ______ change.
c. rusting of iron is _____ change.
d. When metal are subjected to _____, they under go expansion.
e. All the three States of matter _______ on heating and _______on cooling.
f. Souring of curd is an______ change.​

Answer 1

1. a, b, c, d all are irreversible..

2. a. insoluble.

b. irreversible.

c. slow.

e. increases, decreases.

f. irreversible.

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Answer 2

Answer:

heya I have given the answer please mark as branalist answer