Class 3 Science Water as a Natural Resource

Last updated on June 28th, 2023 at 11:57 pm

Water As a Natural Resource For Class 3 Question & Answer

[Q] What are the uses of water?

• We use water in drinking, cooking, washing clothes, washing utensils watering the plants, etc.
• All living things need water to live.
• some plants also need water to live plants that grow in water are called aquatic plants.For example lotus, and water lily is the example of aquatic plants
• Animals also need water to live. they drink water from ponds rivers lakes etc.
• some animals are living in water they are called aquatic animals like fish octopus whale turtle etc.
• Plants that grow in the desert need little water to live .plants that grow in the desert do not have leaves their leaves are modified into spines.An example is a cactus plant

 

[Q] What are the natural water resources ?

The natural resources of water are rain, seas, oceans, rivers, lakes, and ponds.But Rainwater is the main source of natural water.

 

[Q] Why Ocean water is not drinkable?

Water from Oceans and Seas cannot be used for drinking because it is very salty in taste.

 

[Q] What are the 3 states of water?

Water exists in all three states that are;

• Solid – ICE is a solid form of water.
• Liquid – water is a liquid form
• Gas – Water vapor is a gaseous form of water.

 

[Q] Define Soluble and Insoluble Material.

Material that cannot be dissolved in water is called insoluble material while the material which is completely dissolved in water are called soluble material.

• 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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Question bank for General Knowledge for Kids.