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What is a simple pendulum? Define the time-period of a simple pendulum
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1
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1585
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June 28, 2019
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Why do organisms need to take food?
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1
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1670
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June 27, 2019
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Plz get me pdf of dav guide book class 7 science
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1
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1533
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June 25, 2019
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A car accelerates from rest at a constant rate α for some time
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1
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905
|
June 20, 2019
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Write any seven differences between concave and convex mirror
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1
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3243
|
June 19, 2019
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Three differences between uniform motion and nonuniform motion
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1
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1073
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June 18, 2019
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Why concave mirrors are used as shaving mirrors?
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1
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858
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June 17, 2019
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Please explain what is land breeze and sea breeze with a diagram
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1
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22009
|
June 17, 2019
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Why does a balloon taken near a candle burst?
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1
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2318
|
March 26, 2018
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The picture in figure shows tree line along the sea coast on an island near the equator
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0
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2823
|
March 24, 2018
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Explain briefly how the uneven heating between the equator and the poles generate wind currents
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0
|
4333
|
March 24, 2018
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Describe an activity to demonstrate that warm air is lighter than cool air
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0
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6095
|
March 24, 2018
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List two reasons that can cause floods
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0
|
784
|
March 24, 2018
|
|
List the dangers associated with a cyclone
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0
|
698
|
March 24, 2018
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Write three precautions that need to be taken during a thunderstorm
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0
|
1383
|
March 24, 2018
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Write three precautions that need to be taken in cyclone prone areas
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0
|
4049
|
March 24, 2018
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|
Which one of the following place is unlikely to be affected by a cyclone?
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0
|
9046
|
March 24, 2018
|
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What planning is required in advance to deal with the situation created by a cyclone?
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0
|
10952
|
March 24, 2018
|
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How will you help your neighbours in case cyclone approaches your village/town?
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0
|
7747
|
March 24, 2018
|
|
Explain why holes are made in hanging banners and hoardings
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0
|
5234
|
March 24, 2018
|
|
You want to buy a house. Would you like to buy a house having windows but no ventilators? Explain your answer
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0
|
4577
|
March 24, 2018
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|
State two experiences that made you think that air exerts pressure other than those given in the text)
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0
|
12387
|
March 24, 2018
|
|
Suggest two methods to find out wind direction at a given place
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|
0
|
1938
|
March 24, 2018
|
|
Suggest some precautions to be taken to prevent the roof of a tin sheet from flying away during a fierce wind storm
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0
|
3260
|
March 24, 2018
|
|
When strong/high speed wind blows, an umbrella held upright at times gets upturned
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0
|
4139
|
March 24, 2018
|
|
Paheli kept an empty bottle made of plastic inside a refrigerator
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0
|
3645
|
March 24, 2018
|
|
Explain how soil pollution and soil erosion could be prevented
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0
|
7251
|
March 24, 2018
|
|
List the differences between clayey soil and sandy soil
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0
|
7530
|
March 24, 2018
|
|
Explain how soil is formed
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0
|
18311
|
March 24, 2018
|
|
In towns and cities, generally, the bore wells have to be dug very deep to get water as compared to bore wells dug in villages
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0
|
4351
|
March 24, 2018
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