|
Name The Angle between incident ray and a normal ray
|
|
0
|
73
|
February 15, 2021
|
|
Describe an activity to show that thermoplastic is a poor conductor of electricity
|
|
1
|
17030
|
August 9, 2020
|
|
Draw the structure of human eye and label any three parts of it
|
|
1
|
855
|
July 17, 2019
|
|
Can rusting of iron be considered as an example of combustion?
|
|
1
|
1395
|
July 16, 2019
|
|
Draw a labeled diagram of human ovum
|
|
1
|
730
|
July 16, 2019
|
|
List two application of reflection of sound
|
|
1
|
619
|
July 16, 2019
|
|
Which fuel has highest calorific value?
|
|
1
|
723
|
July 15, 2019
|
|
Name two plants and their parts we eat
|
|
1
|
812
|
July 15, 2019
|
|
Which property of Bakelite makes it feasible to be used for making electrical switches?
|
|
1
|
755
|
July 15, 2019
|
|
What is the difference between rapid combustion and exploison?
|
|
1
|
1199
|
July 10, 2019
|
|
Give two examples of inflammable substances
|
|
1
|
797
|
July 9, 2019
|
|
What is the difference between contact and non-contact forces?
|
|
1
|
2072
|
July 9, 2019
|
|
What is the difference between concave lens and concave mirror.?
|
|
1
|
965
|
July 8, 2019
|
|
What is a kaleidoscope? State the principle on which it is based
|
|
1
|
1399
|
July 6, 2019
|
|
Why is sodium stored in kerosene?
|
|
1
|
1067
|
July 4, 2019
|
|
Differentiate between deforestation and afforestation
|
|
1
|
1070
|
July 4, 2019
|
|
Explain the construction and working of soda acid fire extinguisher
|
|
1
|
1822
|
July 3, 2019
|
|
What is the process of transplantation in agriculture?
|
|
1
|
1844
|
July 3, 2019
|
|
Why is petroleum sometimes called 'black gold'?
|
|
1
|
988
|
July 2, 2019
|
|
Differentiate between regular reflection and diffused (irregular) reflection
|
|
1
|
940
|
June 25, 2019
|
|
Process of testing pollution check in vehicles, explain in 50 words
|
|
1
|
1046
|
June 21, 2019
|
|
This is map of India, write 2 places where natural gas is found?
|
|
1
|
942
|
June 19, 2019
|
|
Define combustible and non-combustible materials with examples
|
|
1
|
905
|
June 18, 2019
|
|
What do you understand by 4R principal
|
|
1
|
3163
|
June 18, 2019
|
|
Can you give the example of spontaneous combustion, rapid combustion, and explosion
|
|
1
|
6571
|
June 17, 2019
|
|
Make sketches of animal and plant cells. State three differences between them
|
|
0
|
2286
|
March 24, 2018
|
|
State the differences between eukaryotes and prokaryotes
|
|
0
|
19611
|
March 24, 2018
|
|
Write short notes on the following. Cytoplasm Nucleus of a cell
|
|
0
|
9606
|
March 24, 2018
|
|
The size of the cells of an organism has no relation with the size of its body
|
|
0
|
2685
|
March 24, 2018
|
|
Why do plant cells have an additional layer surrounding the cell membrane?
|
|
0
|
1767
|
March 24, 2018
|
