Some changes are listed below, classify them as temporary and permanent.
a) Souring of curd
b) Ripening of oranges
c) The sawing of a piece of wood into two
d) Cooking of food
e) Heating of milk
Answers
Answer:
a) permanent since, curd becomes sour when it is kept over a long time so once it gets sour it cannot be revert back to its original state.
b)permanent change since ripening cannot be reverted.
c)permanent as after cutting the piece into two, the two pieces will not get attached by itself without any external force.
d)permanent since, once the food is coked it cannot be changed.
e)temporary since, once a milk is heated it can again be cooled if kept for some time.
Answer:
A - temporary
B - Permanent
C - Permanent
D - Continuous
E - temporary
Explanation:
Temporary changes are the changes that are there just for a brief timeframe. For the most part, impermanent changes are reversible. e.g., liquefying of ice
Permanent changes are the changes that stay for a more drawn out time and are not reversible E.g. rusting of iron. Temporary differences are those progressions that are accomplished for a brief timeframe, similar to some physical changes and solidifying of water.