For a young child, every new thing in life that mesmerize him needs to have an explanations. Whether in school or at home, he will not stop bothering anybody just to satisfy his curiosity and to get an honest answer. Below is my answers to a list of 15 questions my children once have asked me. Who knows, one of these days, your kids may also ask the same questions
Why is the sky blue?
Blue, blue the sky is blue. Why? It is due to the process called Rayleigh scattering. As sunlight reaches the earth’s atmosphere, it hits molecules present in the air thus scattering them in every direction. Frequency determines the amount of light scattered, as a result, blue light which has a high frequency is scattered many times more than other color. Thus, as more amount of blue light is scattered, then we have a blue skies during clear days.
Why do leaves turn brown in autumn?
Have you ever heard about photosynthesis? By means of chlorophyll that gives leaves their green color, plants store energy in the form of light and transform it to chemical energy. As autumn nears, falling temperatures and shortening daylight hours make trees to prepare for winter. Trees grow a corky membrane between the branch and the leaf stem, which obstruct nutrients to flow smoothly into the leaf. This process turn green leaf to turn yellow caused by the decline in the production of chlorophyll.
Why do we have bad breath in the mornings?
I know for sure that most people wake up with a bad breath. And the reason for this– the flow of saliva slows down during sleep and the unpleasant smell comes from anaerobic bacteria living in your mouth. Supply of oxygen decreases as we sleep, thus it allows bacteria to feed on leftover foods enabling them to multiply at a fast rate. Do you know where the unpleasant smell comes from– blame it to sulphur, which is often a waste product of the process.
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