Showing posts from January, 2021Show all
What is a rain forest?
On a given day of the year, where will your shadow at 12 noon be smaller - in Srinagar or Colombo? Why?
Why can’t we see planet Venus overhead?
A lunar eclipse happens on a full moon day, when the Earth comes between the Sun and Moon. Why doesn’t it happen on all full moon days?
What is a sundial? Where is the largest sundial in the world?
What is the role played by the ozone layer in the atmosphere? Why is the ozone layer depleting?
What is the ozone layer?
Cellulose is a common part of fibres such as coir and jute. But starch is not, why?
How do astronauts manage to stay in space during a spacewalk? What happens if they go away from their spaceship?
Why do all the soaps with different colours produce the same colour of foam?
Who gave the stars and constellations their names?
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