Which one of the following is not an example of irreversible change.

Curdling is a chemical change.
Blinking is a fast change.
Chopping is a physical change.
Burning paper is an irreversible change.

Choose the correct option which suits the correct puzzle.

3. Chemical
1. Physical
4. Burning
2. Reaction

Select the following examples with respect to the physical change:
a. Melting
b. Rusting
c. Curdling
d. Blowing
e. Rotting
f. Chopping
g. Reaction

7.Chemical change is the change where a reaction happens and a new substance is formed.
8. Melting is the example of physical change.
9. Physical change is where no new substance is formed.
10. Rusting is the example of chemical change.

Match the following according to the changes given through the images:

1 is a chemical change
2 is a fast change
3 is a physical change.