1.Limestone is mainly calcium carbonate 2.Limestone can be quarried and used as a building material. 3.It is used in the making of glass, cement, concrete, toothpaste, bread and is used to neutralise lakes and soil Uses of limestone

1.When limestone is heated in a kiln it breaks down into quicklime (calcium oxide) 2.This reaction is called thermal decomposition 3.Quicklime reacts with water to produce slaked lime (calcium hydroxide) which is used to reduce the acidity of soil Heating limestone

Making Quicklime Making quicklime

Making Quicklime Making quicklime

Making Slaked lime Making slaked lime

Making Slaked lime Making slaked lime

Limestone Cycle Making slaked lime

Limestone Cycle Making slaked lime

Limestone Cycle Making slaked lime

Limestone – Benefits/Problems