Why do parts of our body fall asleep? This is caused by the compression of nerves between a bone and another hard object or hindrance in blood circulation. This happens when we are in the same position for some time. When the nerve is under...
How did baby kangaroos get the name, ‘Joey’? A Kangaroos are found mostly in Australia. The aborigines or native Australians used to call the baby kangaroos ‘joeys’. After the British settlers arrived in Australia they also began to use the same word, spelling it the...
Why do people get hiccups? Many people have suffered an embarrassing moment because of hiccups, for they occur without warning. Hiccups occur when the diaphragm, a muscle which is located between the lungs and the abdomen, draws air into the lungs in sudden, jerky movements....
What are albino animals? Albino animals are white in colour but it is not their normal colouring. Examples are white crows. The parents of an albino offspring have “no colour” genes as well as genes for colour. Very rarely, an animal inherits a no colour...
What is a tornado? A tornado is a funnel-shaped windstorm which is powerful enough to uproot houses, trees and whatever it encounters on its path. It can leave a trail of destruction that will take months to recover from. Tornadoes are formed in clouds. When...
Can stars last forever? Stars also grow old and die. Stars die in two different ways. Some shine steadily for a while and then swell into red giants. Some red giants shrink into a white, then a black dwarf. This is what will happen to...
Do animals use sign language? Using sign language is not unknown in the animal world. Take the example of moths. Moths are food for birds. To escape from the birds, some moths use certain signs. They have large spots on their back wings which resemble...
Which animal is looked after by its father? Though the animal kingdom follows the same rules as the human world when it comes to child rearing, there are a few exceptions. The most notable is the emperor penguin. The female lays her egg and then...
What is the universe made up of? Matter and space are the main constituents of the universe. The planets, moon and stars form matter. The stars come together to form galaxies. The galaxies form groups called clusters and these clusters together gang up to form...
What are dinosaurs? Dinosaurs lived millions of years ago before mankind existed. The word means, “terrible lizard.” Knowledge about dinosaurs comes from fossils of their footprints and bones. Most of them had fat bodies, thin necks and small heads. Some had wings and could fly....
