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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:Read More
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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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