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 9 of 21
Why Do Horses Need Shoes?
Clip-clop, clip-clop goes a horse on the road. If you look carefully you will see that it walks on the tips of its toes – like a ballet dancer. Walking on tiptoe for a long time is difficult for us, but horses find it the easiest thing to do. The foot of a horse is divided into a toe with a broad tip. While other animals have nails and claws, the horse has a hoof surrounding the toe....
Elevator Physics
You get into an elevator (or a lift, as we sometimes call it) and for a second or two, just as the elevator moves down, we feel weightless. On the other hand, if we go up in an elevator, we suddenly feel heavier just as the elevator lurches upwards. To understand this feeling of weightlessness, we need to understand a few basic things first. Mass: The amount of matter that constitues us results in our mass....
Which Insects Live the Longest?
Take a look around. Which insects do you see? A fly sitting on your computer screen, a mosquito buzzing in your ear just as you drop off to sleep, a butterfly flitting about in the garden outside, or how about the ants that made off with the remains of a dead moth? Most of the insects we see around us have rather short lives. A few hours, a few days, that’s about how long most insects last....
Why do People Kiss Under the Mistletoe?
In millions of homes in Europe and America, a sprig of mistletoe with berries is hung outside the doorway at Christmastime. According to custom, a man is allowed to kiss a girl if she is standing under the mistletoe. Why do People Kiss Under the Mistletoe? Legend has it that when Balder, the son of the Norse goddess Frigga was killed by an arrow made of mistletoe by Loki, an evil spirit, Frigga wept tears of white berries which brought him back to life....
Where did the Yo-Yo Originate?
Yo! Man! Know where the yo-yo comes from? No, I am not asking you to name the local toy store. Sorry, let me rephrase it. Gimme its history, guys. You thought the yo-yo was created by Donald Duncan, huh? Forget it! The yo-yo is nearly a millennium old! So, it wasn’t called the yo-yo then. But for want of a better name let’s stick to calling it the yo-yo, okay? Kids all over the world have played with a similar toy....
What are Canal Locks?
In some rivers or canals the water is not too deep for large ocean-going ships. In such places large watertight compartments are built that help ships and boats go up or down different levels on rivers or canals. These are called canal locks. In certain areas, man-made canals are constructed to connect two water bodies. These canals are built to help cut down the distance a large ship would otherwise have to take to reach its destination....
How did Sign Language Originate?
Have you ever seen people deep in conversation with each other without a single sound coming from their lips? Their hands and fingers move animatedly as they silently ‘speak’ sentences that sometimes you can also guess at. These people are actually conversing using sign language because they are hearing or speech impaired. Across the world, people have developed sign language to communicate with each other and with the rest of the world. Signs and gestures have always been in use....
What is the Trail behind a Jet?
When we were small, we used to look up to the sky and often see a white trail left by a jet aircraft. Rocket! Rocket! We used to yell, jump up with joy, clap our hands and strain our eyes as the ‘rocket’ disappeared into the horizon. Soon, the white streak would change into a broken, twisted cloud path. And we were told that it was the fairies’ trail. What is the Trail behind a Jet?...
Why do Airplanes have Wings?
I remember my trip to Goa. The flight was scheduled for six a.m. As the aeroplane taxied on the runway it gained speed. I felt a kick in the stomach and then we were airborne. It was my first flight and I was very excited. My father who was sitting next to me, asked, “Can you tell me how the aircraft flies?” “Because of wings,” I replied promptly. But I could not tell him what the wings do to make a plane fly....
How Did Pencils Originate?
Not many people know that the pencil they use everyday can trace its history back 2000 years! Early writers, or scribes as they were called, of ancient Egypt, Rome and Greece wrote on forms of paper called papyrus. They used a stylus which was a metal rod made of lead. That is why we still call the black core of the pencil as “lead” even though it is made from graphite! Graphite was discovered sometime in the 16th century in England....