5Ws & H For Kids

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Who, What, Where, When, Why & How?

Who, what, where, when, why & how? Our online science magazine for kids tries to answer all your questions on science, environment, earth, geography, health, living beings, exploration and discoveries. You will find features on shooting stars, ocean depths, dinosaurs, satellites, ham radios, hiccups, and much more. Enter this fascinating kids science zone and find the answers to all your questions about the world around you.


210 items in this section. Displaying page 21 of 21

When was the First Circumnavigation by Air?

When was the First Circumnavigation by Air?

Ever since Colombus set sail to see if the world was flat or round, intrepid explorers have vied with each other to go around the earth. The world has been circumnavigated by sea by Marco Polo and people have walked across continents from end to end. But until 1924 no one had tried to circumnavigate the world by air except over a continent by a balloon in a Jules Verne novel. Eight Americans decided to circumnavigate the world by plane....

What are Q-Tips?

What are Q-Tips?

Everbody has used this product at some time or other in some form or other. Sometimes it is used to clean the wax from your ears, and sometimes to clean dust from delicate instruments. Many kick themselves for not patenting it when they knew about it. So what are Q-Tips? It is such a simple silly thingummy – a piece of thick plastic or cardboard with cotton wrapped at each end! Q-Tips are today, a registered trademark of Chesebrough-Ponds, Inc, USA....

What is Asthma?

What is Asthma?

Asthma is one of the most common diseases affecting the lungs. A serious disease, it affects all races and both sexes equally. This disease affects millions. Many of us recognize asthma symptoms like wheezing, chest tightness and gasping for breath. However, few of us know what is going on inside the body of a person with asthma. When we breathe, we inhale oxygen through the nose and mouth. The air passes down the trachea or windpipe through the two bronchi that branch off into the millions of tiny airways that make up the lungs....

Cigarette Packs that Talk

Cigarette smoking is injurious to health – everyone knows that. Well, till a few decades ago, people were unaware that smoking could cause lung and heart diseases and cigarette packs never had a warning on them, like they do now. In recent years, research has shown that smoking is dangerous and it has now been made compulsory for all cigarette manufacturers to have what is known as, a ‘statutory warning’ printed on the cover. It states that ‘cigarette smoking is injurious to health’....

Why does a Kentish Plover Parent Desert its Family?

Why does a Kentish Plover Parent Desert its Family?

When couples exchange vows on the marriage day, they generally say ‘till death do us part’. For a species of shore-dwelling bird called the Kentish Plover, it is ‘till divorce do us part’. Indeed, birds of this species usually leave their partners after the incubation (hatching) of the eggs and usually it is the female who moves on, while the male stays on to look after the babies. A recent study conducted by Andras Kosztolanyi of the University of Debrecen, in Hungary, sheds light on the reason behind this behaviour....

Whick Book Carries Its Own Light?

How many times have you been told not to read in bed and how often have you been ticked off for reading in poor light? Probably quite a few times if you are an avid book-worm. Now you can cast away your small flashlights and get rid of your reading lamp, for there are specially designed books that create their own light! Whick Book Carries Its Own Light? [Illustration by Shinod AP] The glowing book...

How Did the Indian Postal Service Start?

How Did the Indian Postal Service Start?

Although methods of postal delivery varied from one country to another, it is believed that in India, Emperor Chandragupta Maurya who ruled the country between 321-297 BC, was the first to introduce a form of postal communication to dispatch confidential reports to distant posts in his empire. However, the first recorded mention in history is to be found in the writings of historian Ziadduin Barni. He mentions that Ala-ud-din Khilji of the Delhi Sultanate, who ruled Delhi over 700 years ago, organized a regular horse and foot runner service called harakuras in 1296 AD....

How does the Army Post Office System Work?

It’s the one thing every soldier away from home looks forward to: mail. So everyday it is ‘Hey, Mister Postman, look and see, if there is a letter for me’? For a solider in his outpost, the letter from a loved one is his most cherished and valued document, read and re-read a million times till the next one arrives. The soldiers in the Indian defence forces are from every nook and cranny of India – from Kashmir in the North to Kanyakumari in the South from Tawang in the state of Arunachal Pradesh in the East, to Porbandar in the State of Gujarat in the West....

How Did Advertising Start in India?

How Did Advertising Start in India?

The first newspaper in India was brought out by an Englishman James Augustus Hickey in 1780 who was stationed at Calcutta. The paper was brought out on Saturdays and was first called the Calcutta General Advertiser or Hickey’s Bengal Gazette. Publishing a newspaper is an expensive business as Hickey realised to his cost. He was losing money faster than the newspapers came out of the printing press. To make ends meet, Hickey decided to take on advertisements or ads....

Which is the Oldest Church in India?

Which is the Oldest Church in India?

In 52 A.D. Thomas Didaemus, one of the 12 apostles of Jesus Christ is believed to have landed at Musiris (Cranganore) in Kerala. He made his first converts both Jews and Hindus at Palayur a town now in Trichur district, Kerala. There he built a small church with an altar, which he consecrated. This is supposed to be the oldest church in India. St. Thomas later moved to the east coast. and settled in Madras (now Chennai) in 64 A....

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