Class 6 Science Chapter 14: Water - NCERT Solutions

(a) Evaporation

It is the process of conversion of water into the vapours.

(b) Condensation

The cooling of water vapours and then conversion into water is known as condensation.

(c) Drought

Drought is the condition where lack of water occurs in the excessive amount.

(d) Flood

Flood is the condition in which excess amount of water occurs.

(a) Condensation

Conversion of water vapours into the water droplets are known as condensation. When the cool water vapours of cold water comes in the contact of environment it becomes hot and convert into the water.

(b) Evaporation

It is because of the water converts into the vapours when hot iron is placed over them.

(c) Condensation

It is because of the conversion of vapours into tiny water droplets.

(d) Evaporation

It is due to evaporation, it mainly happens in high temperature faster.

(e) Evaporation

Due to cooling effect, here evaporation takes place.

(a) False

It is false because water vapours are present in air in every season.

(b) False

Due to high temperature, water evaporates from soil also.

(c) True

This statement is true because conversion of water into vapours is called evaporation.

(d) False

Evaporation of water also occurs on heating.

(e) True

This statement is correct because condensation is the process of conversion of water vapours into tiny droplets of water.

Yes, we spread it near an heater because near the heater it get hot and the water present in clothes, quickly get converted into the vapours and the clothes will dry soon. As the temperature increases, the process of evaporation will become faster.

We see tiny droplets around the cooled bottle of water because, the air around the cooled bottle is warm. So the air around the cooled water bottle condensed when comes in contact with the cool environment. And the tiny droplets can be seen outside the cooled bottle.

To clean their spectacles, people often breathe out on the glasses to make them wet because the air contains moisture that is coming out of the mouth as compared to the air present around us. That’s why spectacles becomes wet and that will be easy to clean them.

Due to the process of evaporation, the water from the soil, pond, lake, mountains, sea and oceans gets converted into water vapours because of high temperature. These water vapours go higher and higher, as we go on the higher altitude the air becomes much cooler. Then the vapours condense or we can say that vapours convert into the tiny water droplets. These tiny droplets remain in the air, then it seems to us as the clouds.

Drought is a condition where excessive amount of loss of water occurs. If there is no rainfall for the long time period than soil continuously loses water through the evaporation and transpiration. Water retaining capacity of soil becomes weak. The level of water in soil, oceans, ponds and lakes goes down or we can say dries up and which may leads to the condition called drought.