What is Water Cycle? Video Lecture - Class 7

[Music]
hello friends I am drippy you know that
rain makes the grass green and it makes
your garden grow hmm have you ever
wondered what makes rain though let's
learn how does rain form first we will
need the Sun so here is the Sun when the
Sun shines the heat of the Sun warms the
water turning it into an invisible gas
called water vapour this process the
changing of water into a gas is called
evaporation because gas is lighter than
liquids water vapor rises up into the
sky and they further move up into the
way from Earth's surface due to the
temperature of gas so in the sky the
water vapor cools and changes back into
tiny water droplets this change of water
vapor into water droplets is called
condensation and it's the opposite of
evaporation clouds are made up of tiny
water droplets so when condensation
occurs in the sky clouds form and grow
let's see it from a closer perspective
the droplets bang together and form even
bigger drops when the drops get heavy
they fall because of gravity they even
grow and bump into one another on their
journey from the cloud to the ground at
every single raindrop that reaches the
ground is made of 1 million of the
original tiny water droplets rain drops
fall on the ground surface when the Sun
can shine on them and the whole process
happens again this whole process is
called a water cycle and keeps the water
moving from the ground to the sky
fulfilling the water needs of the plants
animals and people to survive so now you
know how do raindrops form and fall
let's summarize this steps of water
cycle evaporation the changing of water
into a gas is called evaporation
condensation the changing of water vapor
into water droplets is called
condensation precipitation water falls
from the sky in the form of rain snow or
hail this process is called
precipitation collection oceans and
lakes collect water that is fallen water
evaporates into the sky again and the
cycle continues
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