C2 - Construction materials

Question 1

What are the building materials for the following raw materials?

1) clay
2) limestone and clay
3) sand
4) iron ore
5) aluminium ore

Answer 1

1) brick
2) cement
3) glass
4) iron
5) aluminium

Question 2

What is a metamorphic rock?

Answer 2

Rock formed under large heat and pressure.

Question 3

What is sedimentary rock?

Answer 3

Rock formed from sediments found at the bottom of oceans.

Question 4

What is the word equation of thermal decomposition of calcium carbonate?

Answer 4

Calcium Carbonate = Calcium Oxide + Carbon Dioxide

Question 5

What is concrete made from?

Answer 5

Aggregate, cement, sand and water.

Question 6

What is reinforced concrete?

Answer 6

Concrete around a steel rod that strengthens it.

Question 7

What is thermal decomposition?

Answer 7

The chemical breakdown of a compound into at least two other compounds under the effect of heat.

Question 8

How is cement made?

Answer 8

Limestone is heated with clay.

Question 9

Is concrete hard under compression or tension?

Answer 9

Concrete is hard under compression.

Question 10

What happens if concrete is put under lots of pressure?

Answer 10

It will bend very slightly and its underside starts to stretch and crack.