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 Page 1


Some Natural
Phenomena
Page 2


Some Natural
Phenomena
Lightning
Lightning is streaks of bright light
and sound caused by electric
discharge between clouds and
earth or between different clouds.
Earthquake
Earthquake is a sudden shaking or
trembling of the earth. This happens
because of sudden movements
deep inside the Earth's crust.
Some Natural Destructive
Phenomena
Page 3


Some Natural
Phenomena
Lightning
Lightning is streaks of bright light
and sound caused by electric
discharge between clouds and
earth or between different clouds.
Earthquake
Earthquake is a sudden shaking or
trembling of the earth. This happens
because of sudden movements
deep inside the Earth's crust.
Some Natural Destructive
Phenomena
E l e c t r i c a l
C h a r g e
This is a special property
of matter that can make
objects either pull towards
each other or push away.
Charges are created when
electrons, tiny particles,
move from one object to
another.
Page 4


Some Natural
Phenomena
Lightning
Lightning is streaks of bright light
and sound caused by electric
discharge between clouds and
earth or between different clouds.
Earthquake
Earthquake is a sudden shaking or
trembling of the earth. This happens
because of sudden movements
deep inside the Earth's crust.
Some Natural Destructive
Phenomena
E l e c t r i c a l
C h a r g e
This is a special property
of matter that can make
objects either pull towards
each other or push away.
Charges are created when
electrons, tiny particles,
move from one object to
another.
Charges Around You
We come across charged materials daily.
We can see it when we see lightning, or
when dust sticks to our TV screen, or
even when our clothes cling together
after drying. 
Page 5


Some Natural
Phenomena
Lightning
Lightning is streaks of bright light
and sound caused by electric
discharge between clouds and
earth or between different clouds.
Earthquake
Earthquake is a sudden shaking or
trembling of the earth. This happens
because of sudden movements
deep inside the Earth's crust.
Some Natural Destructive
Phenomena
E l e c t r i c a l
C h a r g e
This is a special property
of matter that can make
objects either pull towards
each other or push away.
Charges are created when
electrons, tiny particles,
move from one object to
another.
Charges Around You
We come across charged materials daily.
We can see it when we see lightning, or
when dust sticks to our TV screen, or
even when our clothes cling together
after drying. 
positive
associated with protons
negative
associated with electrons
Electrical Charge
There are two types of electrical charges:
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FAQs on PPT: Some Natural Phenomena - Science Class 8

1. What causes lightning to occur?
Ans. Lightning occurs due to the build-up of electrical charges in the atmosphere during a thunderstorm. When the charges become strong enough, they are released as a lightning bolt.
2. How does a tornado form?
Ans. Tornadoes form when warm, moist air collides with cool, dry air, creating an unstable atmosphere. This can lead to the formation of a rotating column of air that extends from a thunderstorm to the ground.
3. Why do earthquakes happen?
Ans. Earthquakes occur due to the sudden release of energy in the Earth's crust, usually caused by the movement of tectonic plates. This movement can result in the shaking of the ground.
4. What causes a tsunami?
Ans. Tsunamis are typically caused by underwater earthquakes, volcanic eruptions, or landslides. These events can displace a large volume of water, creating powerful and destructive waves.
5. How are hurricanes formed?
Ans. Hurricanes form over warm ocean waters when a combination of atmospheric conditions, including low pressure and high humidity, create a rotating system of clouds and wind.
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