Question

Fit the given words correctly in the given blanks.
state, shape, and composition.

1) Moulding of clay involves change in_______.
2) Burning of wood involves change in_______.
3) Melting of ice involves change in________.

Answer 1

$\bullet$ When the clay is moulded, the state and composition remain the same. Only the shape of the clay is changed. Therefore, moulding of clay involves a change in shape.
$\bullet$ Once the wood is burnt, it turns to ash. The composition of wood and ash is not the same. Therefore, burning of wood involves a change in composition.
$\bullet$ Melting of ice changes its state from solid to liquid. Since ice is the solid form of water, both have the same composition.