C1.2

- shells, skeletons of sea creatures and coral from billions of years ago

-building material

-CaCO3 (calcium carbonate)

-Drilling 

-Blasting

-Crushing

-Secondary Crushing

-Sorting

- Quarry during the day

-Use railways instead of lorries

-Restrict size of quarry

-Less but larger quarries

- Add heat to limestone

-also produces CO2

-Calcium oxide (CaO)

It is when you break down a chemical by heating

- In a furnace

-Rortary Kiln

-metal carbonate-> metal oxide + carbon dioxide

- Add water to quicklime

-Calcium hydroxide - Ca(OH)2

- add water to slaked lime- limewater

- limewater + carbon dioxide -> limestone + Water

-cloudy

- add more Co2 to make it colourless

- Cement- powdered limestone with clay

-Mortar- mixture of cement and concrete

- Concrete- water, rock, cement, gravel and sand

-Glass- sodium carbonate + sand