Water is a colourless, odourless and tasteless liquid. Water is an important part of our environment. Without water, all living things will die because we need water to stay alive.
Water may good or bad and human beings need good water to be alive and stay healthy.
Good water is clear and free of germs, It has no odour and colour. It is also fit for drinking while bad water is dirty water that contains all kinds of germs and it is not fit for drinking.
Today, we are going to learn about water purification.
Water purification is the process of making water pure for human consumption. It is important to note that, clear water may contain germs which are tiny organisms we cannot see with our naked eyes. Drinking bad water can make us really sick, that is why it is necessary to make sure that your water is safe for drinking.
There are different ways to purify water and make it fit for drinking.
1. By Boiling
This is the cheapest and one of the safest method of water purification. In this method, clean water is brought to boil and left to cool for a few minutes. The high temperature kills many germs and makes clean water good for consumption.
Filtration is one of the effective ways of purifying water. This method uses chemical and physical processes to purify water and make it safe for drinking.
By Distillation
This method uses heat to collect pure water in the form of vapour. This method is effective in removing bacteria, germs and other unwanted materials.
By adding Chemicals
Chemicals such as chlorine and alum are added to water to kill germs and parasites that cause diseases.
Good and germ-free water is important for healthy living!
Now that we have learnt so much about water purification, let’s answer some questions.
1. ____________ is important for healthy living.
A. Bad water
B. Good water
C. Cold water
Great job! Option B is the correct answer.
Good water is important for healthy living.
2. Germs are big organisms that we can see with our naked eyes.
A. False
B. True
C. Maybe
Brilliant! Option A is the correct answer. The statement is false!
Germs are tiny organisms that we cannot see with our naked eyes.
3. ____________ is the cheapest method of purifying water.
A. Distillation
B. Filtration
C. Boiling
D. By adding chemicals
Great job! Option C is the correct answer.
Boiling is the cheapest method of purifying water.
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