Limestone is a sedimentary rock It is mostly made up of the compound calcium carbonate
Buildings Making glass Uses of Limestone Improving soil fertility Making concrete And even the tourist trade…
Cement + sand mortar Cement + pebbles concrete
Limestone (heat) calcium oxide = quicklime Quicklime and sand are used to make glass
Powdered limestone is sometimes added to soil if it is too acidic The limestone neutralises acid in the soil
Where do we get limestone from? • What kind of rock is it? • What compound does it mostly contain? • Why is it a popular building material? • What is mortar? • What is it made from? • How do you make cement? • What do you add to cement to make concrete? • Why is concrete used so much? • What is used to make glass? • Why might soil be too acidic? • What can farmers do to make it less acidic? • How does this work?