NCERT Solutions Class 7 English (Honeycomb) Chapter 8 Fire Friend and Foe – Here are all the NCERT solutions for Class 7 English Chapter 8. This solution contains questions, answers, images, explanations of the complete chapter 8 titled Fire Friend and Foe of English taught in class 7. If you are a student of class 7 who is using NCERT Textbook to study English, then you must come across chapter 8 Fire Friend and Foe. After you have studied lesson, you must be looking for answers of its questions. Here you can get complete NCERT Solutions for Class 7 English Chapter 8 Fire Friend and Foe in one place.
NCERT Solutions Class 7 English 1 Chapter 8 Fire: Friend and Foe
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Fire: Friend and Foe
NCERT Solutions Class 7 English 1 chapter 8 Fire: Friend and Foe
Class 7, English 1 chapter 8, Fire: Friend and Foe solutions are given below in PDF format. You can view them online or download PDF file for future use.
Fire: Friend and Foe
Q.1: Mark the correct answer in each of the following. (i) Early man was frightened of (a) lightning and volcanoes. (b) the damage caused by them. (c) fire. (ii) (a) Fire is energy. (b) Fire is heat and light. (c) Fire is the result of a chemical reaction.
Ans : (i) Early man was frightened of fire. (ii) Fire is the result of a chemical reaction.
Q.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.
Ans : (iv) (ii) (iii) (i)
Q.1: What do you understand by the ‘flash point’ of a fuel?
Ans : The temperature at which a fuel begins to burn is called its flash point.
Q.2: (i) What are some common uses of fire? (ii) In what sense is it a “bad master”?
Ans : (i) Some of the common uses of fire are to cook food, warm the homes in winter and to generate electricity. (ii) It is a “bad master” because if it is not kept under control, it can prove 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.
Q.3: Match items in Column A with those in Column B.
Q.4: What are the three main ways in which a fire can be controlled or put out?
Ans : Fire can be controlled or put out by taking away one of the three things required for burning.The first way is to take away the fuel. If the fire has no fuel to feed on, no burning can take place.The second way is to prevent oxygen from reaching it. Small fires can be put out with a damp blanket or a sack. This stops oxygen from reaching the burning material. Sometimes carbon dioxide is used for extinguishing fire. The third way of putting out a fire is to remove the heat. If the temperature can be brought down below the flash point, the fuel stops burning. Blowing on a burning matchstick or a candle removes the hot air around the flame, bringing down its temperature below the flash point. Sometimes water is sprayed on a fire. It absorbs heat from the burning fuel and lowers the temperature. It also cuts off the supply of oxygen, and therefore, fire is extinguished.
Q.5: Match the items in Box A with those in Box B
A(i) To burn paper or a piece of wood, (ii) Small fires can be put out (iii) When water is spread on fire, (iv) A carbon dioxide extinguisher is the best thing (v) Space left between buildings B• it absorbs heat from the burning material and • lowers the temperature. • reduces the risk of fire. • with a damp blanket. • we heat it before it catches fire. • to put out an electrical fire
Q.6: Why does a burning candle go out when you blow on it?
Ans : When we blow air on a burning candle, we remove the hot air around the flame. In this way, we reduce its temperature below the flash point. Thus, the candle goes out.
Q.7: Spraying water is not a good way of putting out an oil fire or an electrical fire. Why not?
Ans : If water is sprayed onto an oil fire, then 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. In case of an electrical fire, the person spraying water might receive an electric shock and be killed. Therefore, spraying water is not a good way of putting out an oil fire or an electrical fire.
Q.8: What are some of the things you should do to prevent a fire at home and in the school?
Ans : Precautions to be taken at home : (i) Handle the cooking gas carefully. Open the doors and windows if the gas is leaking. (ii) Keep the regulator knob of the gas cylinder off when it is not in use. (iii) Don't allow children to let off crackers. (iv) Only cotton clothes should be worn in the kitchen, while cooking food. (v) Don't use cracked cooking gas tubes. (vi) Get the defective electricity wires replaced. Precautions to be taken at schools : (i) Defective electricity switches and wires should be got replaced. (ii) The fire preventive norms should be observed. (iii) Scientific experiments should be conducted in the teacher's supervision. (iv) The school must arrange to buy a carbon dioxide extinguisher.
Q.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. ____________________ _____________________ _____________________ ____________________ _____________________ _____________________
Ans : Combines Call Comes Blow Bursts Gets Means Stops Absorbs Lowers – –
Q.2: Fill in the blanks in the sentences below with words from the box. You may use a word more than once. (i) Gandhiji’s life was devoted to the ______________ of justice and fair play. (ii) Have you insured your house against ______________ ? (iii) Diamond is nothing but ______________ in its pure form. (iv) If you put too much coal on the fire at once you will _____________ it. (v) Smoking is said to be the main ____________ of heart disease. (vi) When asked by an ambitious writer whether he should put some ______________ into his stories, Somerset Maugham murmured, “No, the other way round”. (vii) She is a ______________ copy of her mother. (viii) It is often difficult to ______________ a yawn when you listen to a long speech on the value of time.
Ans : (i) Gandhiji’s life was devoted to the cause of justice and fair play. (ii) Have you insured your house against fire? (iii) Diamond is nothing but carbon in its pure form. (iv) If you put too much coal on the fire at once you will smother it. (v) Smoking is said to be the main cause of heart disease. (vi) When asked by an ambitious writer whether he should put some fire into his stories, Somerset Maugham murmured, “No, the other way round”. (vii) She is a carbon copy of her mother. (viii) It is often difficult to smother a yawn when you listen to a long speech on the value of time.
Q.3: One word is italicised in each sentence. Find its opposite in the box and fill in the blanks. (i) You were required to keep all the doors open, not _____________. (ii) PUPIL: What mark did I get in yesterday’s Maths test? TEACHER: You got what you get when you add five and five and _____________ ten from the total. (iii) Run four kilometres a day to preserve your health. Run a lot more to ______________ it. (iv) If a doctor advises a lean and lanky patient to reduce his weight further, be sure he is doing it to ______________ his income. (v) The world is too much with us; late and soon, Getting and ______________ we lay waste our powers.
Ans : (i) You were required to keep all the doors open,not shut. (ii) PUPIL: What mark did I get in yesterday’s Maths test? TEACHER: You got what you get when you add five and five and subtract ten from the total. (iii) Run four kilometres a day to preserve your health. Run a lot more to destroy it. (iv) If a doctor advises a lean and lanky patient to reduce his weight further, be sure he is doing it to increase his income. (v) The world is too much with us; late and soon, Getting and spending we lay waste our powers.
Q.4: Use the words given in the box to fill in the blanks in the sentences below. (i) The cat chased the mouse ____________ the lawn. (ii) We were not allowed to cross the frontier. So we drove ______________ it as far as we could and came back happy. (iii) The horse went _____________ the winning post and had to be stopped with difficulty. (iv) It is not difficult to see ______________ your plan. Anyone can see your motive. (v) Go ______________ the yellow line, then turn left. You will reach the post office in five minutes.
Ans : (i) The cat chased the mouse across the lawn. (ii) We were not allowed to cross the frontier. So we drove along it as far as we could and came back happy. (iii) The horse went past the winning post and had to be stopped with difficulty. (iv) It is not difficult to see through your plan. Anyone can see your motive. (v) Go along the yellow line, then turn left. You will reach the post office in five minutes.
Q.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. (i) and eighteen fire tenders struggled/the fire began on Monday/to douse the blaze till morning (ii) in a major fire/over 25 shops/were gutted (iii) but property/was destroyed/worth several lakhs/no casualties were reported.
Ans : (i)The fire began on Monday and eighteen fire tenders struggled to douse the blaze till morning. (ii) Over 25 shops were gutted in a major fire (iii) No casualties were reported, but properties worth several lakhs were destroyed.
Q.2: Read the following newspaper report given in the box below.
Ans : DIY
Q.1: Read the lines in which the following phrases occur. Then discuss with your partner the meaning of each phrase in its context. (i) velvet grass (ii) drinking straws (iii) meadow houses (iv) amazing mound (v) fuzzy head
Ans : (i) The velvet grass means soft grass that almost feels like fur or velvet. (ii) Drinking straws mean that it appears as if the butterflies are sipping nectar from the flowers with the straws. (iii) Meadow houses are a reference to several houses which inhabit the insects, birds and animals that live in the meadows. Such as burrows, nests and mounds. (iv) The amazing mound is a reference to the mound created by the ants as their dwelling place. (v) Fuzzy head refers to the heads of the bright yellow flowers which have a beautiful texture.
Q.2: Which line in the poem suggests that you need a keen eye and a sharp ear to enjoy a meadow? Read aloud the stanza that contains this line.
Ans : DIY
Q.3: Find pictures of the kinds of birds, insects and scenes mentioned in the poem.
Ans : DIY
Q.4: Watch a tree or a plant, or walk across a field or park at the same time everyday for a week. Keep a diary of what you see and hear. At the end of the week, write a short paragraph or a poem about your experiences. Put your writing up on the class bulletin board.
Ans : During the summers, I observed the holy Basil plant placed in the courtyard dying, due to lack of water. So, I decided to water it regularly. I realised that the first few days, there was hardly any change in the plant. On the fourth day, tiny leaves emerged on its branches. Soon, those tiny leaves grew into full leaves and the entire plant seemed to have bloomed fully.
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