A2. Unit 6. Materials .

A hard, fibrous material from trees.

A durable material made from animal skin.

A soft, fluffy fiber from the cotton plant.

A transparent material made from silica.

A yellow precious metal, highly valued.

A solid material that is typically hard and shiny.

A thin material made from cellulose pulp.

plastic

A shiny, white precious metal.

A soft fiber obtained from sheep.