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Some Natural Phenomena
What safety measures should we take in case an earthquake strike?
Following safety measures should be taken in case of an earthquake strike:
(i) If, at home we should stick to the corners of the wall.
(ii) Take shelter under a table and stay there till shaking stops.
(iii) Stay away from windows, doors and heavy objects, so that they may not fall on you.
(iv) If we are out we should stay away from trees and buildings.
(v) We should stay inside vehicles, if we are travelling.
(vi) Vehicle should be driven away slowly to get cleared from the spot.
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Suggest three measures to protect ourselves from lightning.
Explain why a charged balloon is repelled by another charged balloon whereas an uncharged balloon is attracted by another charged balloon?
Describe with the help of a diagram an instrument which can be used to detect a charged body.
If two pens made of the same material are rubbed against dry hair and brought closer to each other, will they attract or repel each other?
What kind of electric charge gets developed on the glass rod, when it is rubbed with a piece of silk cloth?
What is lightning?
What is the cause of lightning?
How a huge energy is produced during thunderstorm?
What is the process of meeting of negative charges from clouds with positive charges from ground to release huge energy called?
What is used to transfer electrical charges from one body to another?
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