Page 19 - Final ,.Science BB Prim.5 (2nd term) 2024-2025_Neat

Calculation the average amount of water in some daily
activities

1st method

Activity Duration X Amount of used Total amount of used
water each time
Taking a water 70 L
shower
Brushing 10 minutes X 7L 24 L
teeth with
water running 4 minutes X 6L

2nd method

Activity Repeated X Amount of used Total amount of used
times / a day X water / activity water / a day
Flushing a 20 L
toilet 4 5L
24 L
Washing 6X 4L
hands

Total amount of water used by a family “4 members”

Activity Total amount of X Number of Total amount of used

Flushing used water / a day family members water for a family / a day
a toilet
Washing 20 L X 4 80 L
hands
24 L X 4 96 L

Many people use much water in their daily activities,

we must conserve water during our daily activities.

Second Term 26