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 MoreA 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 MoreThe 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 MoreWhen some people think of blood they generally think of a cut or scrape that can be cleaned up and forgotten quickly. While this is the case with most folks who go through their daily ...
Read MoreRight 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 MoreGenerally, 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 MoreWe 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 MoreWe 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 MoreIn 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 MoreA bundle of plastic strands or thin glass is used to make fiber optics. The light is allowed to pass through this bundle without any leaking. From the point of origin to the destination, crystal ...
Read MoreThe concept which focuses on creating some mean by which anything can be freed from the force of gravity is called Anti-gravity. In many works of science fiction, this idea can be seen. To manipulate ...
Read MoreAfter 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 MoreIn the early days, when the man made boats to travel in the seas, then he did not have any instrument to find the directions in the sea. Therefore, he did not have the courage ...
Read MoreTo make water potable, salt and other particles are removed from recovered waste water, seawater and brackish water and this process is called Desalination. Desalination has become popular, necessary and affordable means because of the ...
Read MoreThere 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 MoreIn 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 MoreWe 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 MoreIt’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 MoreTo get to the truth about ozone pollution it might be best to start with finding out just what “ozone” is and just what “pollution” is. Then we can put the two together and look ...
Read MoreTiny 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 MoreScientists use a spectrometer to determine what an item is made of. That’s the basic explanation, but there is much more to it, course. According to Wikipedia, mass spectrometry is “an analytical technique for the determination ...
Read MoreMany 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 MoreWe 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 MoreWe 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 MoreAt 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 MoreA 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 MoreNewspapers, 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 MoreToday, 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 MoreWe 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 MoreThe periodic rise and fall of water level in the seas or oceans is known as tide. Sometimes these tides rise so high that they look like high walls moving on the surface of the ...
Read MoreWe 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 MoreWith 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 MoreWe 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 MoreWe 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 MoreA model of the solar system which is designed to show the locations of different planets is called an orrey. An orrey also tells the relationship between planets. The orrey can be moved using gearing ...
Read MoreTo 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 MoreIn 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 MoreIn order to predict and model varieties of cyclic phenomena which includes the intensity of sound wave, the oscillation of a spring, the incident light from the sun which is touching the ground around the ...
Read MoreFor an easy answer to this question, we only have to look to the facts – heated air is not as stable as air that is cooler. People see waves above the surface because the ...
Read MoreFor 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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