Page 146 - Science Class 06

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Rain, Thunder and Lightning

• Three States of Water • Interchangeability of States

• Evapora on • Condensa on
• Where does Rain Come from? • Water Cycle
• Thunder and Lightning

Rain Rain! Come again. A er a long spell of found under the earth’s layer called

scorching sun when it rains, everyone feels ground water.
joy. But, due to a long spell of rain during
the monsoon season, many low lying areas
are submerged in water. Have you ever

thought, how does it rain or how the
amount of water is maintained on the
earth? In this chapter, you will study about
Solid Liquid Gas
the natural phenomenon of cloud forma-

on, rain and thundering. Besides, you will Water vapour is the gaseous state of water.
also study about water cycle. Small amount of water vapour is present in
the atmosphere.
THREE STATES OF WATER
INTERCHANGEABILITY OF STATES
Water is found in all the three physical

states— solid, liquid and gas. You studied that water is found in all the
three physical states, i.e, solid (ice), liquid
v The solid form of water occurs in the
(water) and gas (water vapour).
form of snow, frost and ice. Mountain
Peaks are generally covered with snow. Another fact about water is that, its all the
three physical sates are interchangeable,
v Water is the liquid state. It is present in
solid (ice) can be converted into liquid
liquid form in oceans, seas, rivers, lakes,
(water), water can be converted into gas
ponds, etc. Some amount of water is
(water vapour), water vapour can be

146 Science-6