17 solutions available
How day and night occur on the Earth due to its rotation? (Page 172)
Since the Earth is rotating, shouldn’t the stars also appears to move in the sky like the Sun? (Page 1 74)
Why do different stars appear in the night sky over the course of a year? (Page 175)
We go through a cycle of seasons every year. Is it related to the revolution of the Earth around the Sun in some way? (Page 1 77)
Why days are longer in summer than in winter? (Page 177)
Could the light from the Sun get blocked by the two planets which are revolving between the Earth and the Sun? (Page 1 79)
Four friends used the following ways to see the solar eclipse. Who among them was being careless? (i) Ravikiran used a solar eclipse goggle. (ii)...
Fill in the blanks (i) Stars rise in the ______ and set in the _______.
The Moon is much smaller than the Sun, yet it can block the Sun completely from our view during a total solar eclipse. Why is it possible?
The Indian cricket team matches in Australia are often held in December. Should they pack winter or summer clothes for their trip?
Why do you think lunar eclipses can be seen from a large part of the Earth when they happen, but total solar eclipse can be seen by only a small part...
If the Earth’s axis were not tilted with respect to the axis of revolution, explain what would be the effect on seasons?