2. Welcome!

3. Water

4. Water affects us all...

5. Access to water

6. Team Quiz

7. Write down a few words describing this scene

8. True or False? 10% of the Earth’s water is drinkable.

9. If the average Briton had to carry home all their water in 2 litre bottles, how many would they have to fetch per day? A) 4 bottles B) 20 bottles C) 75 bottles D) 90 bottles E) 175 bottles

10. True or False? A dripping tap wastes about 15 litres of water per day.

11. How much water does it take to flush a toilet installed in the last 5 years? A) 3 litres B) 6 litres C) 9 litres D) 15 litres

12. True or False? The average washing machine uses about 20 litres of water per load of laundry.

13. Write down a few words describing this scene

14. Quiz Answers

15. Write down a few words describing this scene

16. True or False? 10% of the Earth’s water is drinkable.

17. False Only about 0.8% of the Earth’s water is suitable for drinking.

18. A) 4 bottles B) 20 bottles C) 75 bottles D) 90 bottles E) 175 bottles C) 75 bottles If the average Briton had to carry home all their water in 2 litre bottles, how many would they have to fetch per day?

19. True or False? A dripping tap wastes about 15 litres of water per day.

20. True Turning off or fixing a dripping tap saves about 15 litres of water every day.

21. A) 3 litres B) 6 litres C) 9 litres D) 15 litres B) 6 litres How much water does it take to flush a toilet installed in the last 5 years?

22. True or False? The average washing machine uses about 20 litres of water per load of laundry.

23. False A typical washing machine uses closer to 50 litres of water per load.

24. Write down a few words describing this scene

25. Water for Everyone

26. Where does the water we use come from?

27. Lakes, rivers, etc.

28. Rain

29. Groundwater

30. Artificial reservoirs

31. What outlets do we take our water from?

32. The tap

33. Bottled

34. Wells

35. Public taps

36. What links the natural source to the outlet?

37. Infrastructure

38. A clean water supply is crucial for everyone

39. How do we get a clean supply?

40. We must decontaminate the water.

41. What things can contaminate water?

42. Dirt and particulates

43. Parasites, bacteria, viruses

44. Poisons

45. How can we remove these contaminants?

46. Chemical purification

47. Boiling

48. Filtering

49. Building a Filter

50. ItemCost Activated charcoal£30 per cup Gravel, coarse£5 per cup Gravel, fine£5 per cup Sand, coarse£10 per cup Sand, fine£10 per cup Cheesecloth£2 per square Rubber band£2 each Cotton£1 per ball

51. What can you do?

52. Turn off the tap while brushing your teeth

53. Install a “hippo” (Thames Water) www.thameswater.co.uk www.thameswater.co.uk

54. Take showers instead of baths

55. Use only what you need when making a cup of tea...

56. Wash fruits and vegetables in a bowl of water

57. This presentation was made by EWB-UK and ARUP

58. Thank you!