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Water
Edu-Primes
Follow
9/21/2024
Category
📚
Learning
Transcript
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00:00
Introduction
00:03
Peter, I am feeling very thirsty.
00:05
Can you get me some water to drink, please?
00:08
Yeah, sure. Here you are.
00:13
Hmm, I feel much better after drinking water.
00:18
Hey, do you know that a major part of our body consists of water?
00:22
Oh, really?
00:24
Yeah, my sister told me about it yesterday.
00:26
So, let's go to her and know more about water.
00:31
Objectives
00:34
At the end of this course, you'll be able to
00:38
List sources of water and its uses
00:42
Know different forms of water
00:45
Describe the concept of water cycle and water supply at our homes
00:51
Explain the storage of water and its wastage
00:55
Identify the causes of water pollution
00:59
Hello, sister.
01:00
Hi, John. How are you?
01:03
I'm fine, thank you.
01:05
Peter said that you told him some interesting facts related to water.
01:09
I also want to know them.
01:11
Okay, I will tell you.
01:14
Actually, water is one of the most abundant substances on the earth.
01:21
It covers almost 70% of the earth's surface
01:25
and it makes our entire planet blue when we see it from space.
01:33
Now, I will tell you about the different forms of water.
01:38
Water exists in three forms, liquid, solid and vapor.
01:44
Sister, from where can we get water?
01:48
Oh, you are asking about the sources of water.
01:51
Actually, water has limited number of sources like wells, ponds, lakes, rivers, seas and oceans.
02:04
Besides these, groundwater is also an important source of water.
02:11
John, do you know the purposes and uses of water?
02:16
No, sister. Please tell us.
02:17
Water is essential for all humans, plants and animals.
02:23
We drink it. We take bath in it. We cook our food in it.
02:30
We wash and clean our clothes with it.
02:34
So, it is very helpful in our daily activities.
02:39
Sister, yesterday you also told me about the water cycle.
02:43
Please tell us more about it.
02:44
Okay. The water cycle is a natural process of circulation of water from the land to the sky and back to the land.
02:55
In this process, water in water bodies like rivers, seas and oceans gets heated up by the sun and forms water vapors.
03:06
This water vapor rises up in the air and gets cool and turns into cloud and finally into rains.
03:16
Then, after raining, land water goes to lakes and rivers which then flow back to the seas or oceans and the cycle completes.
03:28
This cycle gets repeated again and again.
03:37
Guys, now I am telling you how do we get water supply at our homes and other places.
03:44
As you know that we get water through taps and this water is drawn from a lake or a river
03:52
and then it is supplied through a network of pipes after purification process at the water plants.
04:00
We should not waste water while doing daily activities.
04:04
We all use so much water while brushing teeth or washing dishes.
04:10
Sometimes large amount of water gets wasted through small leaks in pipes and dripping taps.
04:18
Look John, this water is so dirty.
04:22
Oh yes, but how does the water get so dirty?
04:26
Guys, do you know that throwing garbage and draining sewage into the water bodies makes it dirty and polluted?
04:35
We cannot use this water for drinking and other household purposes.
04:41
Sister, my teacher told me that we can also store the rain water and reuse it.
04:47
But how can we do it?
04:49
For storing rain water we can use a large tank or even dig a huge pit in the backyard
04:57
and collect the rain water in these reservoirs.
05:01
After that we can use this stored water for watering outdoor plants to keep them green
05:08
and for some washing purposes also
05:11
and in cases this water can also be used for drinking purpose after filtration.
05:18
Friends, now it's time to have some fun.
05:22
Now try to unscramble the words to complete the sentences.
05:27
Summary
05:30
Let's summarize what we have learned so far.
05:34
Water is one of the most abundant substances found on earth.
05:39
Water exists in three forms, liquid, solid and vapor.
05:45
We use water in our daily activities.
05:49
The water cycle is a natural process of circulation of water from the land to the sky and back to land again.
05:58
We should not waste water.
06:01
Dumping garbage in water bodies makes it dirty and polluted.
06:06
Save water.
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