Question

What are slow and fast changes? Give examples.

Answer 1

The changes which take place over a long period of time are called slow changes.
Examples: Rusting of iron, formation of day and night, ripening of fruits, growing of trees are slow changes.

The changes which take place in a short period of time are called fast changes.Examples: Burning of paper, stretching of a rubber band, blowing of balloons, bursting of crackers are fast changes.