Plastics

Question 1

Hydrocarbons

Answer 1

All fossil fuels are made mainly of the elements hydrogen and carbon

Question 2

Methane

Answer 2

Natural gas (CH4)

Question 3

Fossil fuels produce

Answer 3

Carbon dioxide (CO2) and water (H2O) when burned

Question 4

The gas Sulfur dioxide (SO2) is released

Answer 4

On burning of some fossil fuels (coal and oil) which contain Sulfur compounds

Question 5

Acid rain

Answer 5

Sulfur dioxide combines with rainwater to form sulfuric acid causing acid rain

Question 6

Acid rain kills

Answer 6

Fish

Is harmful to plants and erodes limestone buildings

Question 7

A substance that burns in oxygen to produce heat is called a

Answer 7

Fuel

Question 8

Fire triangle:for a fire to happen you need

Answer 8

Fuel
Heat
Oxygen

Question 9

Properties of plastic

Answer 9

Easily moulded 
Durable 
Waterproof 
Hard and soft forms of plastic 
Easily cleaned 
Lightweight 
Insulators and won't conduct electricity

Question 10

Polythene

Answer 10

Tough waxy plastic used around electric cables and for plastic bags

Question 11

Polystyrene

Answer 11

Packaging, for drinking cups, and also for insulation in cavity walls of houses

Question 12

PVC

Answer 12

Drains and pipes and the cladding on the walls of houses

Question 13

Fossil fuels

Answer 13

Are formed from the remains of plants and animals that lived millions of years ago e.g. Coal, oil and gas