How do Stars Form?
From the pearls hanging in the sky to the demigods who control our destiny, stars, to different folks have different meanings. But here we will concern ourselves only with what the science says. So how ...
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How to Get Rid of Rust Stains?
Getting rid of rust is not necessarily the same as getting rid of rust stains. These two conditions that occur on iron and steel should be treated differently. Of course, getting rust stains out of ...
Read MoreWhat is Hypothesis Testing?
Science primarily recognizes two generalized theories—the ‘theory of determinism’ and the ‘theory of randomness’. Theory of randomness says that whatever exists in the universe is just because of an accident and everything exists quite randomly. ...
Read MoreWhy do we have a Leap Year?
The significance of one year is that it is the time taken by the earth to complete a full revolution around the sun. A year consists of 365 days according to the Gregorian calendar, which ...
Read MoreHow is soil formed?
The granular material that forms the upper layer of the land surface on the earth is called soil. Soil is necessary for the plants to grow. Living beings cannot live without plants as the plants ...
Read MoreHow are Valleys formed?
Valleys are wide plains or irregular areas with gradual slope between the mountains. In India, the city of Srinagar lies in one of the most beautiful valleys of the world. Do you know how valleys ...
Read MoreWhat is Statistics?
Statistics can simply be defined as the science of effectively using the numerical data which is related to the groups of individuals or experiments. Statistics not only deals with the collection, analysis and then interpretation ...
Read MoreHow to Get Rid of Rust?
One fellow who believed he had the comedian’s gift said the best way to get rid of rust is to not let things rust in the first place. But apart from this obvious advice, there ...
Read MoreHow are icebergs formed?
In fact, icebergs are the broken pieces of glaciers. The glaciers get broken into big pieces of ice by tides and sea waves when they (the glaciers) slide down from the mountains and valleys and ...
Read MoreHow to Get Rid of Stage Fright?
Stage fright is more common than many people think. People who are comfortable getting up in front of people and speaking or singing are in the minority. Even some of the most talented and experienced ...
Read MoreWhy does Snowfall occur?
Actually, snow is frozen water. During the winter, snow falls in the colder regions and on the mountains. It is soft and white in color. It looks like small pieces of cotton. Snowflakes have ...
Read MoreHow is Snow Formed?
Snow is formed when crystalline water ice present in the earth’s atmosphere precipitates. Now, let’s have another look at the definition without getting again into a jumble of technical words. Crystalline Water Ice! What is the ...
Read MoreHow are Thunderstorms Formed?
A thunderstorm is a weather condition which includes strong winds, lightening, heavy rains and, of course the sound of thunder! If accompanied by hail we call it a ‘hailstorm’. Birth of a thunderstorm: It all happens on ...
Read MoreWhat is Geostationary Orbit?
The term geostationary orbit combines two words, ‘geo’ from Greek, which means ‘the earth’ and ‘stacionarie’, from Middle English, which means ‘stationary’. Thus, the word signifies something that is stationary with respect to the earth. ...
Read MoreHow Does A Man Reach The Bottom Of The Sea?
Right from the start, the man has been anxious to travel around the bottom of the sea and to know about the different substances found on the seabed. Do you know does man reach the bottom ...
Read MoreHow Are Twins Born?
Generally, a woman gives birth to only one child at a time. Sometimes, a woman gives birth to two or more children at a time. The two children born of the same mother at a ...
Read MoreWhat Determines The Sex Of A Child?
We all know that human race is divided into two sexes-male and female. A question arises that why don’t all people belong to one sex? What determines the sex of a child? After menstruation, a woman becomes ...
Read MoreHow Are Plants Useful To Us?
We all know that plants play very important role in our life. About three lakhs of different types of plants have already been studied. We get many things from these plants like fuel, wood, paper, ...
Read MoreHow Does Man Become Blind?
In all over the world about 14 million people are blind. Blindness is of many types. Some people are totally blind whereas the others are blind to some extent. Some people are blind by birth ...
Read MoreWhy Can’t We See Stars During The Day?
After the sunset the stars become visible in the sky. When the darkness of sky increases, the number of stars and their brightness also increases. As the sun come up to the sky, the number ...
Read MoreWhy Do Some Plants Eat Insects?
There are some plants which make their own food but depend on insects for nitrogenous food are called insectivorous plants. These plants derive their nutrition partly from the soil and the atmosphere and partly from ...
Read MoreWhy Do Trees Shed Their Leaves?
In autumn season most of the plants and trees shed their leaves whereas in spring season the new leaves grow on them. The trees look barren after the falling of leaves in autumn. These types ...
Read MoreWhy Do Flowers Have Fragrance?
We are enchanted by the fragrance of flowers in the spring season when we pass through a garden. Nature has gifted many things to the flowers like beauty, nectar, attractive colours and fragrance. The flies ...
Read MoreWhat Is Carbon Burning?
It’s a safe bet that many people are not familiar with the term “carbon burning.” We understand that a lot of what makes up our world – wood, paper etc. – burn, either intentionally or ...
Read MoreWhat Is The Source Of Moisture In The Air?
Tiny drops of water appear on the outer wall of the tumbler, when we put chilled water or ice cubes in it. Do you know from where the water drops come? Actually, these drops appear ...
Read MoreWhat Are Nebulae?
Many big white and black spots can be seen through a telescope, when we look at the sky at night. These black and white spots are called nebulae, the meaning of nebulae is mist and ...
Read MoreWhy Does Thunder Follow Lightening?
We often see lightening followed by thunder in the sky in rainy season. Let us study why does thunder follow lightening? In olden days, man used to believe that the gods were angry with him and was ...
Read MoreWhy Are All The Heavenly Bodies Round?
We all know that earth is round therefore the moon and the sun are also round in shape. Even the stars, the planets and their satellites are also round in shape. Let us study why all ...
Read MoreWhy Do Stars Twinkle?
At night, we see millions of twinkling stars in the sky. In all directions light is radiated by these stars. Even if they look very small in size however, actually they are very big in ...
Read MoreWhat Are Constellations?
A group of stars is called constellation. When the stars had been studied by a man in olden days, he observed that a pattern is being formed when he joined the stars with imaginary lines ...
Read MoreHow Is The Weather Forecast Made?
Newspapers, radio and television are the main sources through which daily we get the weather forecast. The possibility of storm, rain or thunder etc. is forecasted by the weather experts. Do you know how they get ...
Read MoreHow Is The Depth Of The Sea Measured?
Today, the man has obtained a lot of information about the seas. Yet he is unknown to many mysteries of the sea. For example, still he does not know about the time of the origin ...
Read MoreWhy Does The Size Of The Moon Appear To Change?
We know that the moon looks like a bright disc on full moon day, but it goes on fading and disappears on the new moon night. Again it starts increasing in size and becomes a ...
Read MoreWhat Causes Ocean Currents?
We all know that the water in the ponds and lakes is static, whereas the sea water is not static. There are currents of water in the oceans also. The speed of these currents changes ...
Read MoreHow To Know If Someone Is Lying?
With some people it’s almost impossible to know if they are lying. Certain people seem to have a “knack” for sounding sincere when explaining something or telling a story. If we have not had prior ...
Read MoreHow Does The Wind Blow?
We all know that air is the mixture of gases like nitrogen, oxygen, nitrogen, dust particles, water vapors. When the air is in motion we call it the wind. Let us study how the wind blows? When ...
Read MoreHow Do Flowers Produce Seeds?
We all know that seeds produce from flowers and the plants grow from seeds, is a never ending cycle of nature. We all like flowers but do not understand their importance. Fruits are also produced ...
Read MoreWhy We Should Recycle?
To answer this question correctly we should first understand just what recycling is. For several decades, people around the world have put a lot of emphasis on re-using items and taking material from used items ...
Read MoreWhy Is The Colour Of Leaves Green?
In plants the new born leaves look pink in colour but later on they turn green. Let us study the reason behind it. It is known to all that the colour of a substance depends ...
Read MoreWhy Do We Have Seasons?
For an easy answer to this question, we only need to understand that light travels in a straight line but the Earth is slightly tilted on its axis. At certain times as the planet travels ...
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