potable water. Potable of ground water and water is not pure water in salty water. Extended writing: AT skills covered by this the chemical sense describe the process of practical activity: 2, 3 and because it contains Give reasons for the desalination. 4. dissolved substances. steps used to produce Video clip potable water. Extended writing: The methods used to describe the process of YouTube: produce potable water WS 2.3, 2.4, 2.5, 2.6, distillation depend on available 2.7 supplies of water and local Extended writing: explain conditions. why distillation separates substances. In the UK, rain provides water with low levels of Grade 9: explain what dissolved substances happens to substances (fresh water) that collects during the process of in the ground, in lakes and distillation in terms of rivers, and most potable intermolecular forces of water is produced by: attraction. 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. If supplies of water are limited, desalination of
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. If supplies of water are limited, desalination of of ground water and salty water. Give reasons for the steps used to produce potable water. WS 2.3, 2.4, 2.5, 2.6, 2.7 Extended writing: describe the process of desalination. Extended writing: describe the process of distillation Extended writing: explain why distillation separates substances. Grade 9: explain what happens to substances during the process of distillation in terms of intermolecular forces of attraction. AT skills covered by this practical activity: 2, 3 and 4. Video clip YouTube:
AQA-8462-SOW-RES.DOCX