1.6    Forms of water
        Water can be found in all the three forms, i.e., solid, liquid and gas.
(i)    Solid : It occurs in the form of snow, ice crystal, ice caps at the poles of the earth, snow covered mountains and glaciers.
(ii)    Liquid : It occurs in the form of rain, oceans, lakes rivers and even ground water.
(iii)    Gas : The gaseous form is the water vapour i.e., present in the air around us.

1.7    Water cycle

The supply of water in nature does not run out. This is because water is continuously recycled in the water cycle.
(i)     Heat from the sun causes the water on the earth’s surface to evaporate. The  vapour rises, cools and condenses to form tiny water droplets. These droplets form clouds.
(ii)    The clouds get carried along by air currents. They cool and the droplets join to form larger drops.
        These fall as rain.
(iii)     If the temperature in the region is very low, these water droplets fall as hail, sleet or snow.

(iv)     Some of the rain water flows along the ground as streams. Some soaks through the ground and then reappears as springs. Streams and springs join to form rivers. Rivers flow back into the sea. Thus, the water cycle is completed.

Continue reading to

Join any of the batches using this book

Batch List

Smart classes
Shalini's Biology classes

Course : CBSE Class 7

Start Date : 10.08.2022

End Date : 31.12.2022

Types of Batch : Live Online Class

Subject M T W T F S S
Science(9 hours) 7:00 PM 7:00 PM 7:00 PM 7:00 PM 7:00 PM 7:00 PM 7:00 PM
Hindi(9 hours) 5:00 PM 5:00 PM 5:00 PM 5:00 PM 5:00 PM 5:00 PM 5:00 PM
ADVANCE CBSE 7 FOR SOCIAL. MATHS, SCIENCE
Vidya Bharti Educational Institutions

Course : CBSE Class 7

Start Date : 10.08.2022

End Date : 31.12.2022

Types of Batch : Live Online Class

Subject M T W T F S S
Mathematics(6 hours) 1:00 PM 1:00 PM 1:00 PM 1:00 PM 1:00 PM 1:00 PM -
Science(6 hours) 2:00 PM 2:00 PM 2:00 PM 2:00 PM 2:00 PM 2:00 PM -
Social Science(6 hours) 3:00 PM 3:00 PM 3:00 PM 3:00 PM 3:00 PM 3:00 PM -
ADVANCE BATCH FOR CBSE 7
Vidya Bharti Educational Institutions

Course : CBSE Class 7

Start Date : 11.08.2022

End Date : 31.12.2022

Types of Batch : Live Online Class

Subject M T W T F S S
Mathematics(6 hours) 1:45 PM 1:45 PM 1:45 PM 1:45 PM 1:45 PM 1:45 PM -
Science(6 hours) 2:45 PM 2:45 PM 2:45 PM 2:45 PM 2:45 PM 2:45 PM -
Social Science(6 hours) 3:45 PM 3:45 PM 3:45 PM 3:45 PM 3:45 PM 3:45 PM -
class 7
Star educational Institute

Course : CBSE Class 7

Start Date : 10.08.2022

End Date : 31.12.2022

Types of Batch : Live Online Class

Subject M T W T F S S
Mathematics(1 hours) 7:15 PM 7:15 PM 7:15 PM 7:15 PM 7:15 PM 7:15 PM 7:15 PM
Science(1 hours) 7:15 PM 7:15 PM 7:15 PM 7:15 PM 7:15 PM 7:15 PM 7:15 PM
English(1 hours) 7:15 PM 7:15 PM 7:15 PM 7:15 PM 7:15 PM 7:15 PM 7:15 PM
Hindi(1 hours) 7:15 PM 7:15 PM 7:15 PM 7:15 PM 7:15 PM 7:15 PM 7:15 PM
Social Science(1 hours) 7:15 PM 7:15 PM 7:15 PM 7:15 PM 7:15 PM 7:15 PM 7:15 PM
Class Science and English
Learn English Easily

Course : CBSE Class 7

Start Date : 10.08.2022

End Date : 31.12.2022

Types of Batch : Live Online Class

Subject M T W T F S S
Science(30 hours) 8:45 PM 8:45 PM 8:45 PM 8:45 PM 8:45 PM 8:45 PM 8:45 PM
English(30 hours) 8:45 PM 8:45 PM 8:45 PM 8:45 PM 8:45 PM 8:45 PM 8:45 PM