This lesson was created for students in an SEN school and can cover two 50 minute lessons. Included: Part 1 Starter - fluoride The Water Cycle picture - teacher explanation of key words ACTIVITY - Keyword match ACTIVITY - fill in the missing keywords on the water cycle picturE ACTIVITY - number the points where the description is happening on the water cycle Potable water information - nets on mountains and desalination INDEPENDENT TASKS - Exam questions Included Part 2 - Potable water picture - sedimentation, filtration clorination PRACTICAL ACTIVITY - Making potable water from dirty water using alum and by making a filtration tower. Instructions and equipment. Risk assessment for practical Table for observations 3 x worksheets included. Print slides 1 to 3 single sided. Everything unblurred when bought.