Good morning, students……

There can be no life without me. All living beings needs me.

Plants dry up without me.

So, who am I????

Lets solve one riddle

Yes, you are right!!!!!

I am water…..

If I am water, then who is this????

Yes, I am dirty water or you can

call me waste water.

What is the difference between 2 pictures????

Yes. This is clean water….

And this is dirty water….

Observe the pictures carefully…..

So, in today's class we’ll be learning about the journey of waste water in the chapter

WASTE WATER STORY

How, did I turn into waste water?????

Write some of the activities in which

water becomes dirty????

Waste WaterWashing Kitchen sink

Dumping of waste Industries

Why do you think, water is important in

our life????

Now on the worksheet, list down the uses of

water

Now, lets see some of the uses of water….

AT HOME

Drinking Washing hands Cooking

Bathing Washing clothes Watering plants

WATER, OUR LIFELINE

So, what can you conclude from

this????

Which water will you prefer to drink????

Yes, You are right!!!!Clean water....

BUT, WHY???Because, waste water contains impurities…

Waste Organic Impuritie

s

Inorganic Impurities

Nutrients Bacteria & microbes

Vegetable wastes

Nitrates

Cause Cholera

Cause Dysentry

Nitrogen

Animal faeces

What does organic impurity, inorganic impurity, nutrients,

microbes and bacterias collectively form???

Organic waste

Inorganic waste

Bacteria

Microbes

SEWAGE

Sewage INDUSTRIESHOMES

HOSPITALS OFFICES

Now, let us see some better house keeping practices

Throwing cooking oil in sink

Throwing cooking oil in dustbin

Which is correct??????

Yes, You are right!!!!Throw oil and fats in the

dustbin.Because, they can harden and

block the pipes.

Throwing everything in sink

Throwing waste in dustbin

Which is correct??????

Yes, You are right!!!!Throw waste in the dustbin.Because, these wastes chock

the drains and hampers degradation process.

WORKSHEET

SEWAGE

Organic Impurities

Microbes and

Bacteria

?

?

ANSWERS

Inorganic impurities

Nutrients

Sewage is released

by…..

HOMES

? OFFICES

?

ANSWERS

Hospitals

Industries

Identify the mistake in the picture

THANK YOU