WorksheetsC14.2 - Potable Water
Total questions: 15
Worksheet time: 11mins
What are finite resources?
Resources that will not run out
Resources that will run out
Resources that are used as fuels
Resources that are sustainable
What is sustainable development?
Development that meets the needs of the current generations without compromising the ability of future generations to meet their own needs
When resources are used in high demand but can be developed to meet the supply in a short period of time.
An example of a natural product
cotton
polyester
nylon
acrylic
An example of a synthetic product
cotton
wood
silk
polythene
What type of bonding is present between atoms in water?
metallic
ionic
covalent
What is potable water?
pure water
Water that has dissolved ions in but is safe to drink
Water from an underground source
Water that is safe to wash in
Freshwater sources are
groundwater and ocean
surface and swimming pools
groundwater, glaciers, rivers
In the UK how is potable water produced?
Passing fresh water through filter beds and then sterilising
Removal of salt from sea water
Reverse osmosis or distillation
Evaporated from a mixture of impure water
What is the first step in the water treatment process?
coagulation
filtration
sterilisation
concentation
How is water sterilised?
Passing fresh water through filter beds and sterilising
Removal of salt from sea water
Reverse osmosis or distillation
Using chlorine, ozone or ultraviolet light
What does chlorination do to the water?
Removes microorganisms
Cleans the water
Makes the water taste nice
Removes twigs and sediment
What is a disadvantage of using condensation to create drinking water?
It can take weeks
It will not be pure
It will not be drinkable
What is desalination?
Passing fresh water through filter beds and sterilising
Removal of salt from sea water
Reverse osmosis or distillation
Using chlorine, ozone or ultraviolet light
In what ways can desalination be carried out?
Passing fresh water through filter beds and sterilising
Removal of salt from sea water
Reverse osmosis or distillation
Using chlorine, ozone or ultraviolet light
What is the main disadvantage of desalination?
It requires a large amount of energy
It is carried out at a high pressure
A low temperature is used
It has a low atom economy
