Question 1 What is a Solar system? Name the different celestial objects which are members of the Solar system? Question 2 What are planets? How many planets are there in a Solar system? Question 3 Name all the planets of Solar system? Question 4 What are inner and outer planets? Name them? Question 5 How can you distinguish between planets and stars at … [Read more...] about The Solar System
Class 8
Constellations
Question 1 What is a constellation? Name few constellations? Question 2 Name the constellation which appear to have the shape of a big bear, a distorted W or M, a hunter or a big lion? Question 3 What is the number of prominent stars in Ursa Major constellation? Draw a diagram to show the position of main stars in it? Question 4 What is the number of prominent stars in … [Read more...] about Constellations
Stars
Question 1 What is meant by celestial objects? Name few celestial objects? Question 2 What is a star? Name the star nearest to the Earth? Question 3 Why does pole star appear to be stationary in the sky? Question 4 How much time does light takes to reach Earth from the Sun? Question 5 Define the term light year? Question 6 Why do stars twinkle at night whereas … [Read more...] about Stars
Human Eye
Question 1 What is night blindness? What causes night blindness? Question 2 How does eye adjust itself to deal with light of varying intensity? Question 3 Why we cannot see our surrounding clearly when we enter a darkened cinema hall from bright sunshine but our vision improves after some time? Question 4 How does the eye lens differ form the ordinary convex lens made … [Read more...] about Human Eye
Formation of Image, Periscope, Kaleidoscope
Question 1 State few characteristics of image formed by a plane mirror? Question 2 What is a periscope? Question 3 State the various uses of periscope? Question 4 Explain how a hair dresser makes you see hair at the back of your head after the hair cut is complete? Question 5 How many images of an object will be formed when the object is placed two plane mirrors … [Read more...] about Formation of Image, Periscope, Kaleidoscope