SCIENCE BLOG – SYNTHETIC FIBRES AND PLASTICS INTRODUCTION The synthetic fibers made by man are called man-made. All the Synthetic fibres and plastics are prepared by a number of processes using raw materials of petroleum origin called petrochemical. These are obtained by the chemical processing of petrochemical. Synthetic fibers are stronger than natural fibers. It …
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SCIENCE BLOG – METALS AND NONMETALS CLASS 8 INTRODUCTION Elements are the substance which cannot be broken down into two or more simpler substances by chemical reactions. Every element is represented by a symbol. In the blog post metals and nonmetals class 8, we come to know various aspects of metals and nonmetals. There are two …
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SCIENCE BLOG – DIGESTIVE SYSTEM PDF INTRODUCTION The human digestive system consists of the alimentary canal and its associated glands. The various organs of the human digestive system in sequence are: mouth, oesophagus or food pipe, stomach, small intestine, large intestine. The gland which are associated with the DIGESTIVE SYSTEM PDF and form a part …
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SCIENCE BLOG – CONSTELLATION DIAGRAM INTRODUCTION If we see at the sky for some time at night, then we will observe some stars forming groups with shapes. So, the shape formed by the group of stars is called a constellation diagram. The shapes of constellations resemble objects familiar to those people. Each constellation is signified by …
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SCIENCE BLOG – COAL AND PETROLEUM INTRODUCTION Here about some exhaustible natural resource like natural gas, coal and petroleum will be discussed, which are also called non-renewable sources of energy .This is because when all the natural gas coal and petroleum present under the earth will get used up, no more supply of these will …
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COMBUSTION AND FLAME INTRODUCTION A chemical process in which a substance reacts with oxygen to give off heat terms as combustion. In combustion and flame we come to know that the substance that undergoes combustion is we know as combustible. It is also called fuel which can …
STATEMENT OF PYTHAGORAS THEOREM INTRODUCTION A Greek philosopher of sixth century B.C. named Pythagoras discovered a very important and useful property of right-angled triangles, named Pythagoras property. In a right-angled triangle, the sides have special names. The side opposite to the right angle is called the hypotenuse. (Pythagoras Theorem ) The …
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WHO DISCOVER CELL AND HOW INTRODUCTION: A cell is a microscopic or very small substance. It is the smallest part of the body of an organism capable of independent existence in who discover cell and how. All new cells arise as a result of division of pre-existing cells. All living beings start their life as …
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PLANT LIFE VERY SHORT TYPE QUESTION 1) Name two plants which grow new plants from leaf. Ans. Bryophyllum and Begonia. 2) What is complete flower? Ans. A flower having all four whorls is called complete flower. 3) What is thalamus? Ans. Swollen base of flower is called thalamus. 4) What is unisexual flower? Ans. Flower …
