Say if the following are Reversible or Irreversible changes:
  1. Sawing of wood
  2. Souring of milk
  3. Painting on a wall
  4. Ripening of a fruit
  5. Sketching a picture
  6. Breaking a clay doll
  7. Burning an incense stick
  8. Bursting a balloon
  9. Inflation of a balloon
  10. Tearing a piece of cloth
  11. Boiling eggs
  12. Melting the butter for cake
  13. Burning of paper
  14. Chopping wood into pieces
  15. Growth of a seed into a plant

1) Sawing of wood is irreversible change.
2) Souring of milk is irreversible change.
3) Painting on a wall is an irreversible change.
4) Ripening of fruit is an irreversible change.
5) Sketching a picture is irreversible change
6) Breaking a clay doll is irreversible change.
7) Burning an incense stick is an irreversible change.
8) Bursting of balloon is irreversible change.
9) Inflation of balloon is reversible change.
10) Tearing of cloth into pieces is irreversible change.
11) Boiling of an egg is an irreversible change.
12) Melting of butter is reversible change.
13) Burning of paper is irreversible change.
14) Chopping of wood into pieces is irreversible change.
15) Growth of a seed into plant is irreversible change.

  • 4
1.   Irreversible change
2.   Irreversible change
3.   Irreversible change
4.   Irreversible change
5.   Irreversible change
6.   Irreversible change
7.   Irreversible change
8.   Irreversible change
9.   Reversible
10. Irreversible change
11. Reversible 
12. Reversible
13. Irreversible change
14. Irreversible change
15. Irreversible change
  • 5
1 . Sawing of wood is irreversible change because the same piece of wood after sawing cannot be obtained again .
2 . Souring of milk is also ireversible change because it cannot be obtained as it was .
3 . Painting on wall is also an irreversible change as the paint or the wall cannot be obtained as it was .
4 . Ripening of fruit cannot be reversed so it is irreversibble change .
5 . Sketching a picture is irreversible change as it cannot be changed into blank sheet of paper .
6 . Breaking of a clay doll cant be reversed so it is irreversible .
7 . We cannot obtain the same incense stick we have burnt so it is irreversible change .
8 . If a balloon bursts out it cannot be obtained as it was so it is irreversible change .
9 . Inflation of balloon is reversible change as we can blow many times in it and make it as it was .
10 .A cloth cannot be obtained if we tear or cut it so it is irreversible change .
11. A boiled egg cannot be reversed so it is irreversible chsnge  .
12 . Melting of butter cannot be reversed , it is irreversible .
13 . A paper cannot be obtained back as it was so it is irreversible change .
14 . Chopping wood is irrreversible change .
15 . The proccess of growth cannot be reversed so its irreversible .
( Well , it was too lengthy but hope it helps , if not dosent matter )
  • 2
Pl explain breaking of clay doll how is it irreversible...we can join back to form original doll right?
Pl clarify
 
  • 2
If the clay doll is baked it can be irreversible because it can break. If the doll is made of dough ( children's clay ) then it is reversible .
  • 2
If the clay doll is baked it can be irreversible because it can break. If the doll is made of dough ( children's clay ) then it is reversible .
  • 1
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