1. Limestone and its uses

2. These are chalk cliffs made from a type of limestone formed from the shells of tiny sea plants

3. Built from limestone blocks

4. Glass is made from limestone

5. These pipes are made of concrete- made from cement,sand,and water

6. Cement is made from limestone and clay

7. Heating Limestone in a Kiln

8. Making Quicklime Limestone breaks down quickly when we heat it strongly to make quicklime and carbon dioxide The equation Calcium carbonate calcium oxide + carbon dioxide This is called ___________ ____________

9. Making slaked lime Calcium oxide + water Calcium hydroxide A little slaked lime dissolves in water and carbon dioxide can be blown through to form calcium carbonate which turns the limewater cloudy Calcium hydroxide+ carbon dioxide calcium carbonate + water

10. Quicklime and slaked lime Mortar is made by mixing slaked lime with sand and water Mortar holds buildings together

11. The limestone cycle I