Limestone and its uses

Question 1

what is used as the base for roads and railways?

Answer 1

Limestone

Question 2

What is limestone mostly made up of?

Answer 2

Calcium Carbonate

Question 3

How do you write calcium carbonate in symbol form?

Answer 3

CaCO3 (supposed to be little 3)

Question 4

Name three things which limestone can be used as a raw material to make?

Answer 4

glass, cement and concrete

Question 5

When making cement and glass is limestone heated or cooled?

Answer 5

Heated

Question 6

What does heat do when you apply it to limestone?

Answer 6

Decomposes it

Question 7

What does limestone turn into when you heat it up?

Answer 7

Calcium Oxide + carbon dioxide

Question 8

How do you write calcium oxide as symbols?

Answer 8

CaO

Question 9

What is the process called for when you turn limestone into calcium oxide and carbon dioxide using heat?

Answer 9

Thermal decomposition

Question 10

What is the most important use of limestone?

Answer 10

Building stone

Question 11

Give 4 examples for advantages to quarrying limestone

Answer 11

• limestone is an important raw material
• quarries provide jobs in the countryside
• Some limestone is exported to other countries, which helps the UK economy
• Jobs in quarries and help local economies, because the workers spend this money in local shops and businesses.

Question 12

Give 4 examples for disadvantages to quarrying limestone

Answer 12

• Quarries produce dust and noise
• Digging a quarry destroys habitats for wildlife
• Quarries spoil the scenery (although they are usually landscaped after quarrying has finished and can become wildlife reserves or recreation areas
• Lorries taking the limestone away cause extra traffic, noise and pollution