potable water. Potable Give reasons for the steps Research where local water water is not pure water in used to produce potable is sourced from (ie ground AT skills covered by this the chemical sense water. water or reservoirs). practical activity: 2, 3 and 4. because it contains dissolved substances. WS 2.3, 2.4, 2.5, 2.6, 2.7 Draw a flow diagram to describe the stages in The methods used to producing potable in the produce potable water UK, focusing on the locality. depend on available supplies of water and local Discuss the advantages and conditions. disadvantages of using chlorine to sterilise swimming In the UK, rain provides pools. water with low levels of dissolved substances Describe the process of (fresh water) that collects in desalination as a diagram, the ground, in lakes and highlighting the places in the rivers, and most potable world where it is used. water is produced by: choosing an appropriate source of fresh water passing the water through filter beds sterilising. Sterilising agents used for potable water include chlorine, ozone or light.
potable water. Potable water is not pure water in the chemical sense because it contains dissolved substances. The methods used to produce potable water depend on available supplies of water and local conditions. In the UK, rain provides water with low levels of dissolved substances (fresh water) that collects in the ground, in lakes and rivers, and most potable water is produced by: choosing an appropriate source of fresh water passing the water through filter beds sterilising. Sterilising agents used for potable water include chlorine, ozone or light. Give reasons for the steps used to produce potable water. WS 2.3, 2.4, 2.5, 2.6, 2.7 Research where local water is sourced from (ie ground water or reservoirs). Draw a flow diagram to describe the stages in producing potable in the UK, focusing on the locality. Discuss the advantages and disadvantages of using chlorine to sterilise swimming pools. Describe the process of desalination as a diagram, highlighting the places in the world where it is used. AT skills covered by this practical activity: 2, 3 and 4.
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