@What metal is used to make the plates in a car battery?
Lead
Zinc
Steel

@What is the name of the liquid found between the plates of a car battery?
Sulphuric acid
Nitric acid
Sodium carbonate

@Why could it be dangerous to strike a match near a car battery?
Because the battery produces hydrogen, which can explode
Because the liquid inside the car battery is flammable
Because the heat from the match is enough to start a dangerous chemical reaction

@What liquid is used to 'top up' car batteries?
Distilled water
Nitric acid
Hydrochloric acid

@Before river water can be used in the home it is purified by:
filtration and chlorination
distillation and neutralisation
neutralisation and filtration

@Farmers must be very careful when adding nitrates (in fertilizers) to their land because:
Nitrates are soluble and could contaminate water supplies eventually
Lime in the soil reacts with the nitrates
The soil can quickly become too acidic for crops to grow

@Which substance is used for pickling onions
Ethanoic acid
Hydrochloric acid
Ethane

@Salt can be used to preserve food because:
it has a drying effect
its helps useful bacteria grow
it causes a chemical reaction, producing heat

@Which metal is used in the production of compact discs (CD's)?
Aluminium
Steel
Chromium

@One of the dangerous side effects of DDT (a pesticide) is:
kills birds and animals
causes atmospheric pollution 
pollutes the water table
