Question

Can a substance contract on heating? Give an example.

Answer 1

Answer:

synthetic fibres such as nylon and polyester

Explanation:

when they are torched, they turn black and the soot like substance contracts along with the fibre

Answer 2

Answer:

Yes

Explanation:

substances like Ice,

when water freezes, it's volume increases because of the special shap of it's molecules.

Hence, when we hear ice to water, it's volume decreases i.e. it contracts