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 15 of 21
The Colours of Light
A beam of light seems to have no colour. Actually, it is made up of coloured rays. Usually, these coloured rays combine to form the white light. But it is possible to see the different colours at certain times. For instance, when it rains and the sun’s rays pass through raindrops. Since the raindrop has many sides or surfaces, the rays split up into a fanshape of different colours. And we see the rainbow. Violet, indigo, blue, green, yellow, orange and red....
Who Invented the Frisbee?
At first glance in the park or at the beach, you may confuse it for an UFO (unidentified flying object) and rush home thinking the Martians have really landed from outer space! Soon it becomes clear that the “spacecraft” is actually a harmless toy — a colourful Frisbee, and the creature from outer space is the boy next door! Today, almost all of us have seen one or sent a Frisbee gliding through air. We have seen dogs chase it and leap to catch these flying discs....
What is a Kangaroo Rat?
It looks like a small kangaroo for its hind legs are longer than its fore legs. And it uses its tail to balance itself. In fact, unlike other rats it does not run on all four legs but jumps around from bush to bush in search of food – like a kangaroo. And that’s why it is called the kangaroo rat. It has another unique feature. Unlike most animals, the kangaroo rat does not need to drink water....
How are Stars Named?
Till now we have only seen roads, railway stations, airports, places etc. being named after famous people. But imagine paying money to get a star named after you. If that can happen, then anything is possible in this world! Well, there are organisations in different parts of the world that sell names for the stars in the sky. All you have to do is – go there, fill out the long, detailed form that they give you and buy star names or name stars after someone....
How are Frogs Different From Toads?
If you travel back tens of millions of years to the age of dinosaurs, you may possibly hear a rhythmic musical croaking from marshy ponds or even under your feet. And if you look closely you would probably find the common frog goggling away at you. Amazing isn’t it? Not many people know how ancient frogs are. Scientists have traced their ancestry to 200 million years and found that these animals haven’t changed in the least!...
Where is the Twins Day Festival Held?
Are you a twin? And if so, are you a “double” too? Then Ohio, United States is the place for you to be for an August weekend of twin fun. Every year, in August, twins from all over the world gather at Twinsburg, Ohio, for a special day dedicated to twins and for a weekend of socialising, celebration and fun? The Twins Days festival at Twinsburg is the world’s largest annual gathering of twins. It’s a big club-like event in which twins, “doubles”, triplets, quadruplets and their parents come to this small town near Cleveland....
Do centipedes really have 100 feet?
They are called centipedes because it is believed that they have 100 feet. Actually, they don’t. Of the 3,000 different types of centipedes on our planet, none have 100 feet. Some have 50 and some as much as 350. The extremely venomous Peruvian Giant Yellow-leg or Amazonian Giant Centipede. These eat everything from insects to birds! All centipedes have an odd number of body segments, and each segment has two legs attached to it....
Who's the Brainiest animal of Them All?
The next time someone calls you an ape or a bird brain, ask her to think again. Brain scans of animals have revealed similar patterns of electrical activity in human and animal brains, so obviously humans aren’t the only smart ones around. Who’s the Brainiest of Them All? The brainiest animals are chimpanzees, which share 99 per cent of the human deoxyribonucleic acid or DNA as it is known. (DNA is a chain of molecules within the nucleus of a cell that have all the genetic information influencing the characteristics we inherit from our parents....
Why Don't Spiders Get Caught in Their Webs?
Spiders are not insects but are classified by biologists as arachnids. Arachnids are different from insects as they have eight legs and no antennae. There are over 40,000 species of spiders and some of them build webs while others rely on speed to catch their prey. A spider building its web is extremely fascinating to watch. Some spin these webs by squirting silken threads from modified excretory glands in their body. Each silk gland (some species have up to five) produces a different type of silk....
Why Do Rabbits have Buck Teeth?
What is it that makes every child remember Bugs Bunny? Its toothy smile of course! All rabbits have huge buck teeth in front, and with good reason. Being vegetarians they have to make a meal of leaf, grass, or vegetable. The plants, on their part, are very smart. Over a period of time they have developed ways of protecting their leaves from such animals, for they need leaves to make their own food. Why Do Rabbits have Buck Teeth?...