|
What is a simple pendulum? Define the time-period of a simple pendulum
|
|
1
|
1585
|
June 28, 2019
|
|
Why do organisms need to take food?
|
|
1
|
1671
|
June 27, 2019
|
|
Plz get me pdf of dav guide book class 7 science
|
|
1
|
1533
|
June 25, 2019
|
|
A car accelerates from rest at a constant rate α for some time
|
|
1
|
905
|
June 20, 2019
|
|
Write any seven differences between concave and convex mirror
|
|
1
|
3250
|
June 19, 2019
|
|
Three differences between uniform motion and nonuniform motion
|
|
1
|
1074
|
June 18, 2019
|
|
Why concave mirrors are used as shaving mirrors?
|
|
1
|
858
|
June 17, 2019
|
|
Please explain what is land breeze and sea breeze with a diagram
|
|
1
|
22015
|
June 17, 2019
|
|
Why does a balloon taken near a candle burst?
|
|
1
|
2318
|
March 26, 2018
|
|
The picture in figure shows tree line along the sea coast on an island near the equator
|
|
0
|
2824
|
March 24, 2018
|
|
Explain briefly how the uneven heating between the equator and the poles generate wind currents
|
|
0
|
4333
|
March 24, 2018
|
|
Describe an activity to demonstrate that warm air is lighter than cool air
|
|
0
|
6095
|
March 24, 2018
|
|
List two reasons that can cause floods
|
|
0
|
784
|
March 24, 2018
|
|
List the dangers associated with a cyclone
|
|
0
|
699
|
March 24, 2018
|
|
Write three precautions that need to be taken during a thunderstorm
|
|
0
|
1383
|
March 24, 2018
|
|
Write three precautions that need to be taken in cyclone prone areas
|
|
0
|
4049
|
March 24, 2018
|
|
Which one of the following place is unlikely to be affected by a cyclone?
|
|
0
|
9046
|
March 24, 2018
|
|
What planning is required in advance to deal with the situation created by a cyclone?
|
|
0
|
10952
|
March 24, 2018
|
|
How will you help your neighbours in case cyclone approaches your village/town?
|
|
0
|
7747
|
March 24, 2018
|
|
Explain why holes are made in hanging banners and hoardings
|
|
0
|
5235
|
March 24, 2018
|
|
You want to buy a house. Would you like to buy a house having windows but no ventilators? Explain your answer
|
|
0
|
4577
|
March 24, 2018
|
|
State two experiences that made you think that air exerts pressure other than those given in the text)
|
|
0
|
12389
|
March 24, 2018
|
|
Suggest two methods to find out wind direction at a given place
|
|
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
|
|
0
|
3260
|
March 24, 2018
|
|
When strong/high speed wind blows, an umbrella held upright at times gets upturned
|
|
0
|
4139
|
March 24, 2018
|
|
Paheli kept an empty bottle made of plastic inside a refrigerator
|
|
0
|
3647
|
March 24, 2018
|
|
Explain how soil pollution and soil erosion could be prevented
|
|
0
|
7253
|
March 24, 2018
|
|
List the differences between clayey soil and sandy soil
|
|
0
|
7532
|
March 24, 2018
|
|
Explain how soil is formed
|
|
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
|
|
0
|
4351
|
March 24, 2018
|