A2. Unit 6. Materials .

Front

A hard, fibrous material from trees.

Back

wood

Front

A durable material made from animal skin.

Back

leather

Front

A soft, fluffy fiber from the cotton plant.

Back

cotton

Front

A transparent material made from silica.

Back

glass

Front

A yellow precious metal, highly valued.

Back

gold

Front

A solid material that is typically hard and shiny.

Back

metal

Front

A thin material made from cellulose pulp.

Back

paper

Front

plastic

Back

A synthetic material made from polymers.

Front

A shiny, white precious metal.

Back

silver

Front

A soft fiber obtained from sheep.

Back

wool