The____________ air trapped between these layers keeps the cold out.

_________________are hair-like materials we can obtain from some plants and animals.

The process in which raw fibres are twisted into thread is called ____________

The yarn is made into fabric by the process of____________.

Man-made fibres are also known as ______________.

We get wool from ______________

We knit woollen clothes using ____________.

_____________ clothes keep us warm during winter.

Removal of the fleece from the body of the sheep is known as _______________

Process of washing the sheep's hair__________________ .

Nylon is an example of_______________

Which of the following is a natural fibre?