Gujarat Board GSEB Class 7 English Textbook Solutions Honeycomb Chapter 8 Fire: Friend and Foe Textbook Exercise Important Questions and Answers, Notes Pdf.

Gujarat Board Textbook Solutions Class 7 English Honeycomb Chapter 8 Fire: Friend and Foe

GSEB Class 7 English Fire: Friend and Foe Text Book Questions and Answers

Comprehension Check

Question 1.
Mark the correct answer in each, of the following: …………….
1. Early man was frightened of …………….
A. lightning and volcanoes.
B. the damage caused by them.
C. fire.
Answer:
fire.

2. What is fire ?
A. Fire is energy.
B. Fire is heat and light.
C. Fire is the result of a chemical reaction.
Answer:
Fire is the result of a chemical reaction.

Question 2.
From the boxes given below choose the one with the correct order of the following sentences :
(i) That is fire.
(ii) A chemical reaction takes place.
(iii) Energy in the form of heat and light is released.
(iv) Oxygen combines with carbon and hydrogen.
A. (i) (ii) (iii) (iv)
B. (ii) (iii) (i) (iv)
C. (iv) (iii) (ii) (i)
D. (iv) (ii) (iii) (i)
Answer:
(iv ) (ii) (iii) (i)

Working With The Text
Answer the following questions:

Question 1.
What do you understand by the ‘flash point’ of a fuel?
Answer:
Every fuel catches fire at a particular temperature. This temperature is called the ‘flash point’ of a fuel.

Question 2.
(1) What are some common uses of fire ?
Answer:
Fire is used in cooking, to keep our homes warm during winter. Fire is also used to produce electricity.

(2) In what sense is it a “bad master’’ ?
Answer:
If fire goes out of control, It can cause damage to our life, house and property. It is ‘bad master’ in this sense.

Question 3.
Match items in Column ‘A’ with those in Column ‘B’:

Answer:
(i) fuel – coal, wood, smouldering paper, cooking gas
(ii) oxygen – air
(iii) heat – lighted match, burning coal.

Question 4.
What are the three main ways in which a fire can be controlled or put out ?
Answer:
Fire can be put out by taking away the fuel, stopping the supply of oxygen or by removing the heat from the fuel. These are the three main ways to put out fire.

Question 5.
Match the items in Box ‘A’ with those in Box ‘B’:

Answer:
(i) To burn paper or a piece of wood – we heat it before it catches fire.
(ii) Small fires can be put out – with a damp blanket.
(iii) When water is spread on fire – it absorbs heat from the burning material and lowers the temperature.
(iv) A carbon dioxide extinguisher is the best thing – to put out an electrical fire.
(v) Space left between buildings – reduces the risk of fire.

Question 6.
Why does a burning candle go out when you blow on it ?
Answer:
When we blow on a candle, the hot air around the candle gets removed and it brings down the temperature of the candle below the flash point. Thus, a candle goes out because no fuel can burn below its flash point.

Question 7.
Spraying water is not a good way of putting out an oil fire or an electrical fire. Give reason.
Answer:
Spraying water is not a good way of putting out an oil fire or an electrical fire. If water is sprayed onto an oil fire, the oil will •float to the top of the water and continue to burn. This can be very dangerous because water can flow quickly carrying the burning oil with it and spreading the fire. Similarly, the person spraying water on an electrical fire might receive an electric shock and be killed.

Question 8.
What are some of the things you should do to prevent a fire at home and in the school?
Answer:
Some of the things we should do to prevent a fire at home and in school:

(i) Prevention is better than cure. We should be alert about the use of inflammable substances and handle it with care.

(ii) There is always a possibility of the outbreak of fire in an old building – whether a School or a Housing Complex – because of bared or faulty wiring. Therefore, over loaded wires should be replaced with new ones knd fuse should be checked at regular interval.

(iii) By spreading the knowledge about the handling of fuel, its flash point and about its protection sifter an accident.

(iv) Fire extinguisher should be installed and old wiring must be replaced. Keeping the contact number of the fire brigade in a ready-to-reach place is essential. Regular firedrill must be conducted in large buidlings.

(v) Never take minor cases of fire lightly as it may lead to greater one. We do not store inflammable or combustible things like kerosene or petrol in our homes and in school.

Working With Language

Question 1.
Read the following sentences :
To burn paper or a piece of wood, we heat it before it catches fire. We generally do it with a lighted match. Every fuel has a particular temperature at which it burns.

The verbs in italics are in the simple present tense. When we use it, we are not thinking only about the present. We use it to say that something happens all the time or repeatedly, or that something is true in general.

Find ten examples of verbs in the simple present tense in the text ‘Fire : Friend and Foe’ and write them down here. Do not include any passive verbs.
Answer:
(1) Fire is the result of a chemical reaction.
(2) This is what we call fire.
(3) To burn a piece of paper or wood, we heat it before it catches fire.
(4) Oxygen comes from the air.
(5) We use it to cook our food.
(6) Fuel and oxygen do not make fire by themselves.
(7) We spend millions of rupees each year in fighting fire.
(8) It absorbs heat from burning fuel.
(9) It only means that fire is very useful.
(10) They possess many skills.

Question 2.
Fill in the blanks in the sentences below with words from the box. You may use a word more than once:

1. Gandhiji’s life was devoted to the ……………… of justice and fair play,
2. Have you insured your house against …………………. ?
3. Diamond is nothing but ……………….. in its pure form.
4. If you put too much coal on the fire at once you will ……………….. it.
5. Smoking is said to be the main ……………… of heart disease.
6. When asked by an ambitious writer whether he should put some ……………… into
his stories. Somerset Maugham murmured, “No, the other way round.”
7. She is a ……………….. copy of her mother.
8. It is often difficult to ……………… a yawn when you listen to a long speech on the value of time.
Answer:
1. cause
2. fire
3. carbon
4. smother
5. cause
6. fire
7. carbon
8. smother

Question 3.
One word is italicised in each i; sentence. Find its opposite in the box and fill in the blanks:

1. You were required to keep all the doors open, not ……………… .
2. Pupil: What mark did I get in yesterday’s Maths test ?
Teacher: You got what you get when you add five and ten from the total.
3. Run four kilometres a day to preserve your health. Run a lot more to …………… it.
4. If a doctor advises a lean and lanky patient to reduce his weight further, be sure he is doing it to …………….. his income.
5. The world is too much with us; late and soon. Getting and …………….. we lay waste our powers.
Answer:
1. shut
2. subtract
3. destroy
4. increase
5. spending

Question 4.
Use the words given in the box to fill in the blanks in the sentences below:

1. The cat chased the mouse ……………. the lawn.
2. We were not allowed to cross the frontier. So, we drove …………….. it as far as we could and came back happy.
3. The horse went ……………… the winning post and had to be stopped with difficulty.
4. It is not difficult to see ………………. your plan. Anyone can see your motive.
5. Go ……………… the yellow line, then turn left. You will reach the post office in five minutes.
Answer:
1. across
2. along
3. past
4. through
5. along

Speaking And Writing

Question 1.
Look at the following three units. First re-order the items in each unit to make a meaningful sentence.
Next, re-order the sentences to make a meaningful paragraph.
Use correct punctuation marks in the paragraph:

(1) and eighteen fire tenders struggled / the fire began on Monday / to douse the blaze till morning
(2) in a major fire/over 25 shops /were gutted
(3) but property / was destroyed / worth several lakhs/no casualties were reported.
Answer:
(1) The fire began on Monday and eighteen fire tenders struggled to douse the blaze till ;! morning.
(2) Over 25 shops were gutted in a major fire.
(3) No causalities were reported, but property worth several lakhs were destroyed.

Question 2.
Read the following newspaper report given in the box below:

Answer:
Do it yourself.

Writing

Write a paragraph in about 100 words on ‘A House on Fire’.

It was the month of May. It was a very hot day. I heard a loud noise. When I got up and ran outside, I saw that the house of my neighbour was on fire. The flames were rising to the sky. Everyone feared that the fire would spread the whole locality. Many people were running with buckets full of water and bags full of sand. They were throwing water on the fire. Many men, women and children had gathered.

Soon two fire-engines reached the spot. The firemen began to direct a jet of water with their pipes. They entered the burning house. They helped the family to come out. Fortunately, no one was severely burnt. It took the fire brigade about half an hour to put out the fire. Luckily, there was no loss of life. Whenever I am reminded of the scene, my heart begins to sink.

GSEB Class 7 English Fire: Friend and Foe Additional Important Questions and Answers

Select the most appropriate options as answers and complete the following sentences:

Question 1.
Early man must have seen ……………….. long before he began to use fire himself.
A. volcanoes
B. lightning
C. earthquakes
D. Both ‘A’ and ‘B’
Answer:
D. Both ‘A’ and ‘B’

Question 2.
To make fire ………………. is / are needed.
A. fuel
B. oxygen
C. heat
D. All of these three
Answer:
D. All of these three

Question 3.
‘Kindling temperature’ is ………………
A. ‘flash point’.
B. the temperature at which a fuel begins to burn.
C. the temperature at which oxygen is availed to produce heat.
D. Both ‘A’ and ‘B’
Answer:
D. Both ‘A’ and ‘B’

Question 4.
Fire can become dangerous if ………………..
A. we do not use it properly.
B. we do not have enough knowledge of it.
C. it goes out of control.
D. too much of oxygen is around.
Answer:
C. it goes out of control.

Question 5.
To stop fire, we need to ……………..
A. take away the fuel.
B. prevent oxygen from reaching it.
C. remove heat.
D. All of these three.
Answer:
D. All of these three.

Question 6.
It is not advisable to extinguish ……………. fire using water.
A. an electrical
B. an oil
C. a house
D. Both ‘A’ and ‘B’
Answer:
D. Both ‘A’ and ‘B’

Question 7.
Long ago to put out fire, people ………………
A. used carbon dioxide.
B. formed human chains.
C. sent for fire brigade.
D. None of these three
Answer:
B. formed human chains.

Question 8.
Now the firefighters are also trained in …………………… to help people suffering from burns.
A. forming human chains
B. cutting off electric supply
C. first aid
D. knocking down dangerous walls
Answer:
C. first aid

Say whether the following sentences are True or False:

1. Early man was frightened of fire.
Answer:
True

2. Fire is the result of a chemical reaction.
Answer:
True

3. Fuel and oxygen do not make fire by themselves.
Answer:
True

4. Fire is very useful as long as it is kept under control.
Answer:
True

5. Supply of oxygen means no fire.
Answer:
False

6. Carbon dioxide does not allow oxygen to reach the burning material.
Answer:
True

7. Water absorbs heat from the burning fuel and lowers the temperature.
Answer:
True

8. If water is sprayed onto an oil fire, the oil will float to the top of the water and continue to burn.
Answer:
True

9. Now fire is not worshipped in any part of the world.
Answer:
False

Answer the following questions in two to three sentences each:

Question 1.
How is fire a good servant ?
Answer:
Fire is a good servant when kept under control. We cook our food on fire. We use fire to keep us warm during extreme winter. It is also used in generating electricity.

Question 2.
Before fire brigades were formed, how people tried to put out fire.
Answer:
Before the fire brigade were formed people used to extinguish fire forming human s chain. Everyone was a fireman In that scenario. People used to pass buckets filled with water from a pond or well through each other and the person at the extreme end used to pour it over the flames.

Question 3.
How have we learnt to control fire ?
Answer:
Every year we spend millions of rupees for fighting fires. We spend even large sum of ; money to find out ways to prevent fire from happening. In the process we have learnt to control fire and use it for our betterment.

Answer the following questions in four to five sentences each:

Question 1.
Explain with an example how can , you put out fire by cutting the supply of s oxygen.
Answer:
Oxygen is one of the three elements s essential for causing fire. If we can disrupt s the supply of oxygen then we can put out the fire. This can be applied in case of small fires. If we throw a damp blanket or a sack over the fire, it cuts off the supply of oxygen and the fire is immediately put out.

Question 2.
Why can we not use water to put out some fires?
Answer:
We cannot use water in case of oil and electric fires. Oil floats over water and thus oil fires cannot be extinguished using water. Water flows on and it has the risk of s spreading the fire along. In case of electric fires water cannot be used as an extinguisher, It being a good conductor of electricity, puts the life of the man spraying it in danger.

Read the following passages carefully and answer the questions given below them:

Question 1.
Fire may have puzzled early man but we now know that fire is the result of a chemical reaction. When the oxygen in the air combines with carbon and hydrogen in a fuel, a chemical reaction takes place. Energy in the form of heat and light is released in this process. This is what we call 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 the air. That is why, when you blow on smouldering paper, it often bursts into flame. The third thing needed to make fire is heat. Fuel and oxygen do not make fire by themselves, or else a newspaper or a stick lying in the open would catch fire on its own.

Questions :
(1) When does fire take place ?
Answer:
Fire is the result of a chemical reaction. When the oxygen in the air combines with carbon and hydrogen in a fuel, a chemical reaction takes place.

(2) What process takes place in fire ?
Answer:

(3) Oxygen is very much available any time because ……………..
Answer:
Oxygen is very much available any time because it stays in air.

(4) Fuel and oxygen do not make fire by themselves. How can you say so?
Answer:
Fuel and oxygen do not make fire by themselves. Fire requires three things all together to make it; they are fuel, oxygen and heat (fire). Absence of any one of these three fail to make a fire. If fire can be made without heat, everything in open will catch fire soon as fuel and oxygen are already available in open.

Question 2.
It is sometimes said that fire is a good servant but a bad master. It only means that fire is very useful as long as it is kept under control.

For instance, we use it to cook our food, t warm our homes in winter and to generate electricity. But, on the other hand, if fire gets out of control it can be very dangerous. Each year thousands of homes and shops are damaged by fire. Vast areas of forest are ! also destroyed and hundreds of people are killed or injured.

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 s simply by not adding more fuel to it.

Questions:
(1) ‘Fire is a good servant but a bad master.’ What does this mean?
Answer:
‘Fire is a good servant but a bad master.’ It means that fire is very useful as long as it is kept under control.

(2) Fire is advantageous. Quote the examples from the extract.
Answer:
We use fire to cook our food, warm our homes in winter and to generate electricity.

(3) Fire can work havoc. Give the examples from the extract.
Answer:
Each year thousands of homes and shops are damaged by fire. Vast areas of forest are also destroyed and hundreds of people are killed or injured.

(4) What will happen if fuel is taken away ?
Answer:
If fuel is taken away fire has no fuel. to feed on, so no burning can take place,

Question 3.
Long ago, there were no firemen. When fire broke out, everybody became a firefighter. People formed human chains (they still do if required) and passed buckets of water from a well or a pond to the blaze. Now there are laws about building construction which ensure that space is left between buildings to reduce the fire risk. Every new building, especially a public place, must ensure observance of ‘ fire prevention norms.

Bands of firefighting workers with special equipment, known as fire brigades, are there to put out fires. Firefighters are highly trained people. They possess many skills. They cut off electricity supply, knock down dangerous walls, spray water and other materials to bring fire under control.

Questions :
(1) What happened when fire broke out long ago?
Answer:
When fire broke out long ago, everybody became a firefighter. People formed human chains and passed buckets of water from a well or a pond to the blaze.

(2) What laws are applicable in building 1 construction now?
Answer:
Building construction laws ensure that space is left between buildings to reduce the fire risk.

(3) How are firefighters prepared to encounter fire ?
Answer:
Firefighting workers are provided with special equipment to encounter fire. They possess many skills.

(4) What different actions are taken to put out fire ?
Answer:
Firefighters cut off electricity supply, knock down dangerous walls, spray water and other materials to bring fire under control.

Vocabulary

Replace the underlined words selecting the most appropriate options from the brackets:

(1) We have our bad times but on the whole we’re fairly happy.
(usually, generally, widely)
(2) In the electronics industry, for instance, 5000 jobs are being lost.
(soon, after a short time, for example)
(3) I’d like a job which pays more, on the other hand, I enjoy the work I’m doing at the moment.
(as another point of view, opposite to it, at the same time)
(4) Fire broke out in the mall.
(damaged much, extinguished, started suddenly)
( 5) It must be difficult to cope with three small children and a job.
(deal successfully with, calm down, teach)
Answer:
(1)We have our bad times but generally we’re fairly happy.
(2) In the electronics industry, for example, 5000 jobs are being lost.
(3) I’d like a job which pays more, as another point of view, I enjoy the work I’m doing at the moment.
(4) Fire started suddenly in the mall.
(5) It must be difficult to deal successfully with three small children and a job.

Choose the correct words from the brackets and complete the following passage:

Question 1.
(reaching, damp, supply, putting, burning, prevent)
The second way of ……………. out a fire is to …………….. oxygen from …………… it. No …………… of oxygen means no fire. Small fires can be put out or ‘smothered’ with a …………….. blanket or a sack. This stops oxygen reaching the ……………… material.
Answer:
The second way of putting out a fire is to prevent 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.

Question 2.
(sprayed, continue, dangerous, fires, spreading, float)
Some ……………… cannot be put out with water. If water is ……………. onto an oil fire, the oil will ……………… to the top of the water and to ……………… burn. This can be very ………………. because water can flow quickly, carrying the burning oil with it and ……………… the fire.
Answer:
Some fires cannot be put out with water. If water is sprayed onto an oil fire, the oil will float to the top of the water and continue to burn. This can be very dangerous because water can flow quickly, carrying the burning oil with it and spreading the fire.

Grammar

Choose the correct Article(s), Conjunction(s) and Preposition(s) and complete the following passage:

Question 1.
We spend millions ………………. rupees each year …………….. figlitirig fIres ………………. we spend more trying to find new ways of preventing fires ………………. happenIng and getting …………….. control. On the whole, we have learnt rather well to control fire and put it …………… good use In our everyday life.
Answer:
We spend millions of rupees each year in fighting fires. And we spend more trying to find new ways of preventing fires from happening and getting out of control. On the whole, we have learnt rather well to control fire and put it to good use In our everyday life.

Question 2.
……………. discovery of fire and Its uses helped early man to cope …………….. nature better ………… gradually adopt …………… settled mode of life. Fire is still worshipped in many parts of the world. Fire Is indeed a friend …………….. as we know, It can be a dangerous enemy …………….. it gets out of control.
Answer:
The discovery of fire and Its uses helped early man to cope with nature better and gradually adopt a settled mode of life. Fire is still worshipped In many parts of the world. Fire is Indeed a friend but, as we know, It can be a dangerous enemy once It gets out of control.

Fill in the blanks with the appropriate forms of verbs given In the brackets and complete the texts:

Question 1.
Every fuel ………….1…………….. (have) a particular temperature at which It ……….2……….. (begin) to burn.This temperature …………3……….. (call) the ‘flash point’.
Answer:
1. has
2. begins
3. is called

Question 2.
The second way of …………1…………. (put out) a fire is ………….2………… (prevent) oxygen from reaching It. No supply of oxygen …………3………… (mean) no fire.
Answer:
1. putting out
2. to prevent
3. means

Change the voice of the following:

(1) Early man didn’t know what fire was.
(2) FIre may have puzzled early man.
(3) Three things are needed to make fire.
(4) People formed human chains.
(5) We generally do it with a lighted match.
(6) Small fires can be put out or ‘smothered’ with a damp blanket or a sack.
(7) We spend millions of rupees each year in fighting fires.
Answer:
(1) What fire was, was not known by early man.
(2) Early man may have been puzzled by fire.
(3) We need three things to make fire.
(4) Human chains were formed by people.
(5) It is generally done with a lighted match.
(6) We can put out or ‘smother’ small fires with a damp blanket or a sack.
(7) Millions of rupees are spent by us each year in fighting fires.

Rewrite as directed:

(1) Fire is a good servant but a bad master. (Use ‘Though’.)
(2) Fire is very useful as long as it is kept under control. (Use ‘Till’.)
(3) Vast areas of forest are also destroyed and hundreds of people are killed or injured.
(Use ‘Not only… but also’.)
(4) There are three main ways in which a fire can be put out. (Make it Simple.)
(5) If the fire has no fuel to feed on, no burning can take place. (Turn into Affirmative.)
Answer:
(1) Though fire is a good servant, it is a bad master.
(2) Fire is very useful till it is kept under control.
(3) Not only vast areas of forest are destroyed but also hundreds of people are killed or injured.
(4) Fire can be put out in three main ways.
(5) Burning can take place only if there is fuel to feed on.

Fire: Friend and Foe Summary in English

Fire: Friend and Foe Summary:
Early man must have found fire to be dangerous and frightening. Fire must have been a mystery for an early man but it is known today that it is a result of chemical reaction. When oxygen present in air combines with carbon and hydrogen present in a fuel, energy is released in the form of heat and light and this is ‘fire’. To make fire fuel, heat and oxygen is needed. Wood, coal, gas are fuel. Oxygen is available in air. But to cause fire heat is essential. A piece of paper doesn’t catch fire until oxygen is supplied to it. Every fuel burns at a particular temperature which is also called its ‘flash point’ or ‘kindling temperature’.

Fire is a boon if it is kept under control but can be dangerous if it goes out of it. It is used in our house daily for cooking food, lighting candles and so on, but if it goes out of control it can cause damage to life, houses and even forests. Fire can be controlled by taking away any three of the things required for burning it. It can be stopped immediately by taking away the fuel.

Fire can also be controlled by cutting the oxygen supply, for this many a time blankets are thrown over burning objects. Another way is to reduce the flash temperature; this can be done by spraying water which lowers the temperature. However, water cannot be used to put out electrical fires or an oil fire. Carbon dioxide extinguisher is the best way to control electrical fire.

Earlier people used to form human chains and pass buckets of water from ponds or wells to the blaze. These days, there are trained personnel to handle this. The trained team of firefighters is called fire brigade. They Eire skilled people to handle all kind of fire. They have the knowledge of first-aid as well and are able to provide immediate help to people suffering from burn injuries or from the effect of the smoke. Discovery of fire has been a great boon to mankind. Fire is still worshipped in many parts around the globe. It is a dear friend if we use it properly, but can turn dangerous if it goes out of control.