Artificial building materials

... is made from sand, cement and water, gravel

• concrete

• sand

• clay

• stone

is produced by heating limestone, clay and adding gypsum

• mortar

• cement

• limestone

• concrete

... can be composed of clay, sand, and lime, or concrete materials.

• lime

• brick

• concrete

• cement

... is a strong material.l As a structural material it is recommended for exterior work just for flooring.

• plastic

• laminate

• brick

• concrete

... is an attractive pale yellow or grey stone

• clay

• concrete

• brick

• limestone

... is a very hard material, it is not very flexible. This means that when it is stretched it can break.

• concrete

• ferro concrete

• steel

• brick

brick

• artificial

• natural

• flexible

... is made from cement, water and sand.

• clay

• lime

• mortar

• sand

... is made from sand and limestone.

• stone

• clay

• glass

• brick

Some ‘cut rocks’, including granite, marble and limestone, don't make excellent building materials

• true

• false