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 …
HUMAN DIGEST The food we consume contains highly complex substances like proteins, carbohydrates and fats. These substances must be broken down into simpler soluble nutrient forms which terms as human digest. These substances can be easily absorbed by blood and transported to various parts of our body. A. VERY SHORT TYPE QUESTION ON HUMAN DIGEST Write the …
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WORK ENERGY AND POWER INTRODUCTION: Here we will study and get idea about scientific conception of work energy and power along with vivid question answer. . (A) Very short type question on work energy and power 1) Name another term of energy of configuration. Ans. P.E.and mutual energy. 2) What is the SI unit of energy? …
SIGNIFICANCE OF PHOTOSYNTHESIS INTRODUCTION: Each living cell in every living organism needs energy. Energy is needed to drive the chemical reactions in the cell. It is needed for all metabolic processes: building up new molecules for growth, breaking down unwanted molecules, bringing about movement, etc. the chemical process by which energy is released from glucose …
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PROFIT AND LOSS QUESTIONS When a shopkeeper buys his goods from a manufacturer or a distributor, then seller sells goods with higher price to make profit. The shopkeeper also gains some money by selling his goods to us. If he sells his goods at a lower …
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Characteristics of matter INTRODUCTION: Substances undergo a wide variety of changes. Many changes take place in nature, for example, the change of weather, the change of a plant into a tree, the formation of cloud, the change of a child into an adult etc, which terms as characteristics of matter. Some of these changes are …
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