Question

a. Explosion of a cracker is irreversible change.
b. Dissolving sugar in water is a reversible change.
c. The ripening of a mango is irreversible change.
d. The melting of an Ice candy is a reversible change.
e. Burning of a incense stick ( Agarbathi) irreversible change.
NOTE:
Students complete the worksheet in the class work.

Answer 1

Answer:

a)True

b)true

c)true

d)true

e)true

Answer 2

Answer:

irreversible change is spontaneous and all natural incident like flow of river or ripening of a fruit is example of irreversible change.