English (Honeycomb) Class:- 7 th School:- K.V. SARNI BHOPAL REGION Sub. Teacher:- R.K.PANDOLE START

Index

INDEX FIRE FRIEND AND FOE FFFF iiii rrrr eeee u u u u ssss eeee dddd b b b b yyyy e e e e aaaa rrrr llll yyyy m m m m aaaa nnnn TTTT hhhh rrrr eeee eeee t t t t hhhh iiii nnnn gggg ssss n n n n eeee eeee dddd eeee dddd t t t t oooo p p p p uuuu tttt o o o o uuuu tttt f f f f iiii rrrr eeee TTTT hhhh rrrr eeee eeee t t t t hhhh iiii nnnn ssss m m m m aaaa iiii nnnn llll yyyy n n n n eeee eeee dddd eeee dddd t t t t oooo p p p p rrrr oooo dddd uuuu cccc eeee f f f f iiii rrrr eeee

FIRE USED BY EARLY PEOPLE Early man didn’t know what fire was, but he must have seen the damage it could cause. He must have watched lightening and volcanoes long before he began to use fire himself. Fire was powerful and dangerous, and he was frightened. Fire may have puzzled early man but we now know that fire is the result of a chemical reaction. INDEX

A FOREST FIRE

THREE THINGS USED TO MAKE FIRE Three things are needed to make fire- Fuel, oxygen and heat. Wood, coal, cooking gas and petrol are some examples of fuel. Oxygen comes from air. That is why, when we blow on smoldering paper, it often bursts into flames. The third thing needed to make fire is heat. Fuel and oxygen do not make fire themselves, or else a newspaper or a stick lying in the open would catch fire on it’s own. To burn a piece of paper or wood, we heat before it catches fire, We generally do it with a lighted match. Every fuel has a particular temperature at which it begins to burn. This temperature is called the ‘Flash Point’ or ‘Kindling temperature’ of the fuel

FIREBOATS Fireboats come to the rescue of a burning tanker off the coast of Mexico. Using the unlimited water supply that surrounds them, these boats are able to pump thousands of liters of water per minute to fires as far as 60 meters (200 feet) away. Powerful engines draw water through compartments called sea chests in the bottom of the boat; then the water is pumped through pipes and hoses to the burning tanker and oil.

FOREST FIRE FIGHTING INDEX

Three main ways to put out fire 1- Just as three things are needed to start a fire, there are three main ways in which a fire can be put out. In each, one of the three things needed for burning is taken away. For example, we can take away the fuel. If the fire has no fuel to feed on, no burning can take place. We often let a fire die out simply by not adding more fuel to it

2- The second way of putting out a fire is to oxygen from reaching it. No supply of oxygen means no fire. Small fires can be put out or smothered with a damp blanket or a sack. This stops oxygen reaching the burning material. Sometimes carbon dioxide is used to extinguish fire. It does not allow oxygen to reach the burning material.

3-The third way of putting out fire is to remove the heat. If the temperature can be brought down below the flash point, the fuel stops burning. We blow on a burning matchstick or a candle to put it out. In doing so, we remove the hot air around flash point, and the candle goes out. Sometimes water is sprayed on a fire. It absorbs heat from the burning fuel and lowers the temperature. The blanket of water also cuts off the supply of oxygen, and the fire is extinguished.

Fire Extinguisher portable device used to put out fires of limited size. Such fires are grouped into four classes, according to the type of material that is burning. Class A fires include those in which ordinary combustibles such as wood, cloth, and paper are burning. Class B fires are those in which flammable liquids, oils, and grease are burning. Class C fires are those involving live electrical equipment. Class D fires involve combustible metals such as magnesium, potassium, and sodium. Each class of fire requires its own type of fire extinguisher.

A PICTURE OF FIRE EXTINGUISHER All workplaces are rquired to have fire extinguishers, which have to be clearly labelled and accessible. Usually a notice is placed above the fire extinguisher indicating clearly and briefly which type of fire it can put.

Zoroastrian Sacred Flame Fire is worshipped in a number of religions. In Zoroastrianism, the tending of the sacred flame is one of the central practices of the faith. It is claimed by Zoroastrian elders that this sacred flame has been burning continually since AD 470. In 1940 it was moved from its original location in order to place it behind glass for protection.

Fire fighters A team of fire fighters battles a fire at a London plant. Protective suits and helmets shield them from intense heat and poisonous gases, but their jobs are still rigorous and often dangerous. At a fire, a team performs necessary rescue operations, protects nearby areas, and oversees salvage work, as well as containing and extinguishing the blaze.

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