Limestone Flashcards
1
Q
What is limestone?
A
Limestone is a sedimentary rock made from compressed dead creatures bones
2
Q
What is thermal decomposition?
A
Calcium carbonate (limestone) breaks up when heated to form calcium oxide and carbon dioxide
3
Q
What is the limestone cycle?
A
Calcium carbonate, heated, calcium oxide, add water, calcium hydroxide, dissolve, calcium hydroxide solution, add CO2, calcium carbonate
4
Q
How do we get limestone?
A
Quarrying
5
Q
How do you make cement, mortar and concrete?
A
Limestone + clay = cement
Cement + sand = mortar
Mortar + sand + aggregate = concrete
6
Q
How is limestone useful in farming?
A
The limestone increases the pH scale nearer to neutral which is better for plants
