Last updated on June 28th, 2023 at 11:57 pm
- for example, milk, salt, sugar is soluble in water
- while sand, oil and kerosene are insoluble in water.
[Q] Difference between Sinking and Floating.
The material which sinks in water is heavier than water. For Example – Metals like iron copper aluminum stone
The material which floats on water is lighter than water. For Example: – wood, plastic, ice, etc.
[Q] What are the different Methods of purification of water?
Filtration
In this method, we use filter paper to purify the water. with the help of filter paper, we separate those impurities which is not soluble in water.
Boiling
Boiling is another way to purify water boiling water for 10 to 15 mins can kill the germs present in it.this is the simplest method to purify water.
Chlorination
In this method, we use chlorine tablets in water to kill germs.
Water Purifiers: –
Nowadays we can see that in so many houses people use Water purifiers to clean the water.
Questions and Answers
- [Q] What is evaporation?
- The process in which water is heated and changes into water vapor is called evaporation.
- [Q] What is condensation?
- The process in which water vapor is changed into a liquid form of water is called condensation.
- [Q] What is melting?
- The process in which the solid is heated and changes into liquid form is called melting. For example ice into water.
- [Q] What is freezing?
- The process in which the liquid form is converted into a solid form is called freezing. Example of water into ice
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Also Read :-
Question bank for General Knowledge for Kids.
