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. 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
C) 75 bottles
D) 90 bottles
E) 175 bottles

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

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. Item Cost
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

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!