Page 29 - Final ,.Science BB Prim.5 (2nd term) 2024-2025_Neat
P. 29
Human creates many methods to filter water to recycle wastewater
or polluted water to be used again in other purposes.
Recycle wastewater = removing harmful materials from water.
You can make dirty
water by adding some
mud to clear water.
The filter removes most
of dirt and the filtered
water moves down.
Wastewater = water has already been used in homes & industries
Wastewater engineers
Scientists work in water
treatment plants to remove
harmful materials from
water.
They design tools to provide clean water.
They observe water quality and check the amount
of pollutants.
They test the treated water to sure it is safe before using.
They decide where to build water treatment plants. Bahr Al-Baqar water
They design ways to protect a community from floods. treatment plant in
They calculate the needed amount of drinking water. Egypt.
Second Term 36
