classnotes – Page 35

SS2 Chemistry Third Term: Introduction to Organic Chemistry – Hydrocarbons

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Introduction to Organic Chemistry – Hydrocarbons Organic chemistry originally meant the chemistry of compounds obtainable from plants and animals – living organisms. Organic chemistry is that branch of chemistry that deals with the structure, properties, and reactions of compounds that contain carbon. In other word, organic chemistry is defined as the chemistry of carbon compounds.

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SS2 Biology Third Term: Mechanism Of Respiratory System

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Introduction There are no special respiratory organs in unicellular and aquatic organisms such as Amoeba and Paramecium. Oxygen that dissolves in water diffuses into the body while carbon dioxide goes out of the body through the entire body surface. The cell membrane acts as the respiratory surface. The concentration of oxygen in water is higher

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SS1 Agricultural Science Third Term: Environmental Physiology

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Definition of Environmental Physiology This can be defined as effects of the environment on the growth and performance of farm animals. Normal growth and performance are enhanced when climatic factors like temperature, rainfall, wind, relative humidity, sunlight etc. are moderate. Effects of Changes in Climate on Growth High intensity of radiation affect food intake of

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SS2 Chemistry Third Term: Solubility

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Introduction The term solubility refers to the maximum amount of material that will dissolve in a given amount of solvent at a given temperature to produce a stable solution. Saturated and Unsaturated Solution A saturated solution of a solute at a particular temperature is one which contains as much solute as it can dissolve at

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SS2 Computer Science Third Term: Programme Development

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Programme A program is a set of instructions given to a computer to perform a specific task. A computer program is a list of instructions that tell a computer what to do. Everything a computer does is done by using a computer program. Some examples of computer programs: A web browser like Mozilla Firefox and Apple Safari can be used

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SS2 Physics Third Term: Optical Instruments

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Magnifiers Perhaps the simplest optical instrument is the lens magnifier. Without optical aid, we cannot “see” things close up. The eye will simply not focus closer than about 0.25 m (unless you are nearsighted!). But an object places just inside the focal point of a converging lens will produce a large virtual image that can

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SS1 Mathematics Third Term: Content Geometrical Construction

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Introduction A triangle can be constructed with a compass, a ruler and a protractor. You also need some squared paper and a pencil. At first you need an overview of the information about the triangle you have. A good place to start is by drawing the base line, which is the basis of the further

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SS1 Physics Third Term: Surface Tension

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Introduction We observe many things in our day-to-day life. Surface Tension Phenomenon is one among them. Often we confuse the Phenomena of Surface tension with Buoyancy. Both the phenomena are entirely different to each other in the sense, in Buoyancy a portion of the body gets dipped in the liquid whereas in Surface tension the body will

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JSS1 Mathematics Third Term: Statistics1– Purpose of Data Collection

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The Need for Statistics – Statistical Data Suppose a stranger asks you for information about yourself. You could say lot of things. For example: your name, the town you live in; the school you go to; what you ate last night; the things you like; the things you don’t like; etc. You might also use

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JSS1 Basic Science Third Term: Concept Of Force

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Introduction You must have seen a broken down vehicle in your town or village. Assuming this car is to be taken to a nearby mechanic village, what do you think must be done to it? To make the broken down car move to the mechanic village, you have to push it or get a towing

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