Changes Around Us: Mock Test

Changes that are repeated at irregular intervals are called _______________ changes.

Construction of a bridge takes time hence it is a _____change.

 Rotting of fruits is not useful hence it is an ____________ change.

Chemical change is reversible.

• True

• False

All reversible changes are physical. But all physical changes are not reversible.

• True

• False

Melting of butter is an example of irreversible change.

• True

• False

Name the change that occurs at regular intervals.

Name the change that occurs in a short period.

Name the change that is helpful to humans

Select the example of desired changes

(i) Ripening of fruits. (ii) Rotting of fruits (iii) Rain  (iv) Floods

• (i) and (ii)

• (i)and (iii)

• (ii) and (iii)

• (iii) and (iv)