High School


Topic Replies Activity
Periodic classification of elements 4 January 4, 2019
Atomic structure 5 January 4, 2019
Equilibria 1 January 4, 2019
States of matter ( Gaseous State) 2 January 4, 2019
Electrophile and Nucleophile 2 January 4, 2019
Steel balls sink in water but they don’t sink in mercury. Why? 3 January 4, 2019
What is pasteurization? 2 January 3, 2019
Why is it difficult to run fast on sand? 3 January 3, 2019
Why do we slip on a rainy day? 3 January 3, 2019
Analogy between the Three Day Blow and Nick's mental condition 2 December 22, 2018
If the sun somehow collapsed to form a black hole, what effect would this event have on the orbit of the earth? 2 November 10, 2018
What do you mean by geo-stationary satellite? Explain? 2 November 10, 2018
Explain why the moon has no atmosphere? 2 November 10, 2018
How does ‘g’ at a point vary with distance from the centre of the earth? Where is the highest value of ‘g’? Explain 2 November 10, 2018
Why an astronaut in a space capsule orbiting the earth experiences a feeling of weightlessness? 2 November 10, 2018
What will happen to the value of ‘g’ if the earth stops rotating? 2 November 10, 2018
Why are roads banked on curved path? 2 November 10, 2018
Explain why a cyclist bend while going along curved road? 2 November 10, 2018
A solid tied at the end of a string is revolved in vertical. At what point the tension in the string will be the greatest? 2 November 10, 2018
When a bus takes a turn, passengers are thrown away from the centre of the curved path. Why? 2 November 10, 2018
How will you justify that stone is more rigid than iron? 2 November 10, 2018
If a cork is released from the bottom of a jar filled with water, what will happen and why? 2 November 10, 2018
How will you make difference between density and specific gravity of a body? 2 November 10, 2018
A cork is floating in water. What is the apparent weight of the cork? 2 November 10, 2018
A helium filled balloon rises to a certain height and then halts. Why? 2 November 10, 2018
What are centre of buoyancy andmetacentre? 2 November 10, 2018
State the laws of flotation 2 November 10, 2018
Does a ship sink more in river water or in sea water? Explain 2 November 10, 2018
Why is the bottom of a ship made heavy? 2 November 10, 2018
Why does ice float in water? 2 November 10, 2018