Limestone quarries

How is limestone made? What is the chemical name for limestone?

Name FIVE disadvantages of quarrying

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Name some advantages of quarrying

What do quarry managers do to reduce the impact:

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Name FIVE uses of limestone. (Ext: Can you state why it is used for this purpose?)

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How many tonnes of limestone is needed to build a house??

Write the equation for the heating of limestone.

Write the equation for what happens when we add water to calcium oxide

Limestone quarries

How is limestone made? What is the chemical name for limestone?

Name FIVE disadvantages of quarrying

•

•

•

•

•

Name some advantages of quarrying

What do quarry managers do to reduce the impact:

•

•

•

•

Name FIVE uses of limestone. (Ext: Can you state why it is used for this purpose?)

•

•

•

•

•

How many tonnes of limestone is needed to build a house??

Write the equation for the heating of limestone.

Write the equation for what happens when we add water to calcium oxide

Limestone quarries mark scheme

How is limestone made?

Remains of shells and sea creatures, formed under the sea millions of years ago

What is the chemical name for limestone?

Calcium carbonate

Name FIVE disadvantages of quarrying

• Explosions - blasting• Traffic – lorries travelling past constantly• makes the landscape look nasty• Vegetation is covered in white dust• noisy• permanently damages the landscape

Name some advantages of quarrying

• Provides jobs for locals• Supplies vital materials

What do quarry managers do to reduce the impact:

• Monitor the noise and vibration to ensure they are within the limits allowed

• lorries are washed• lorries are covered in sheets• • Managers restore the land as they go• Plans to turn quarries into lakes

Name FIVE uses of limestone. (Ext: Can you state why it is used for this purpose?)

• Farmers to neutralise acid soil• Scultpures – last a long time• Construction – concrete, glass, cement,

roads and motorways(Strong and hard properties)• cosmetics, medicines, toothpaste• bread – source of calcium• Extraction of iron

How many tonnes of limestone is needed to build a house?? 80 tonnes

Write the equation for the heating of limestone.

Calcium carbonate + heat carbon dioxide + calcium oxide

Write the equation for what happens when we add water to calcium oxide

Calcium oxide + water calcium hydroxide