Potable Water (AQA GCSE Chemistry Combined Science): Flashcards
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Potable water
Potable water
Water safe to drink (treated/purified)
UK summer water conservation measure
UK summer water conservation measure
Hosepipe bans
Fresh water dissolved substances level
Fresh water dissolved substances level
Low levels (suitable for treatment)
Filtration purpose in water treatment
Filtration purpose in water treatment
Removes insoluble particles
Sterilisation purpose in water treatment
Sterilisation purpose in water treatment
Kills harmful microbes
3 water sterilisation methods
3 water sterilisation methods
Chlorine, ozone, UV light
Desalination
Desalination
Making seawater potable
Main desalination method
Main desalination method
Distillation
Desalination drawback
Desalination drawback
Energy-intensive and costly
Fluoride
Fluoride
Naturally occurring ion in water
Water fluoridation purpose
Water fluoridation purpose
Prevent tooth decay
UK water fluoridation decision maker
UK water fluoridation decision maker
Individual local authorities
Fluorosis
Fluorosis
Tooth discolouration/decay from high fluoride
Science and ethical issues
Science and ethical issues
Science provides facts/evidence, not ethical answers
Preferred energy for desalination
Preferred energy for desalination
Renewable energy