Can you guess in what way household wiring has been done ?

Can you guess the volume of oil ?

Can you now guess why red colour has been given to the tail lamps of vehicles and signal lights ? Discuss and note it down in your science diary .

Can you guess what could be the direction of induced current in the coil in such case?

Can you guess the use of this plant.

Given : Munnu's age to be 'x' years Can you guess what (x - 2) may show? Can you guess what (x + 4) may show? What (3x+7) may show?