In a mercury thermometer, the level of mercury rises when its bulb comes in contact with a hot object. So, due to this convection of heat are set in the air and room gets warmer faster. Briefly explain the maximum and minimum thermometers. Students can study more about Air in Chapter 4 of CBSE Class 7 Geography. (c) Both have normal body temperature. We wear dark coloured clothes in winter to keep us warm as they absorb all the heat radiation coming from the sun whereas light coloured clothes reflect most of the heat radiation coming from the sun that falls on them and therefore we feel more comfortable wearing them in the summer. We are advised to use an umbrella when you go out in the sun. Explain the reason for the general fitting of air conditioner at higher level on the wall of the room. Question 2. (b) Fill up the boxes P and T to indicate the mode of flow of heat to the hand. For the setting of curd where temperature is below room temperature, the container in which curd is to be made must be kept in a thermally insulated cover or it can be wrapped with wool or jute sacks so that temperature is maintained for the setting of curd. Also Check - CBSE Class 10 Science Important Questions & Answers for … Since, it is a fact that the water present in the ocean (near the equator) is heated by the sun to a very higher temperature than the water near the poles of the earth. [Value Based Question] sea breeze, Question 8. A clinical thermometer should not be used for any object other than the human body. Welcome to Quiz – Class 7 Science Chapter 4. Question 5. Fill in the Blanks There are following steps to read the temperature on a thermometer. Answer: Air Class 7 Extra Questions Social Science Geography Chapter 4 NCERT Extra Questions for Class 7 Social Science Geography Chapter 4 Air Prelude Question 1. Answer: A circular metal loop is heated at point O as shown in figure. Question 5. As air is a bad conductor of heat, so due to this reason, it does not allow the external heat to move inside and melts the ice. There are some following precautions which are to be observed while reading a clinical thermometer. Wash the clinical thermometer before and after using preferably with an antiseptic solution. Due to following reasons, mercury is used in the thermometers instead of water. While reading the clinical thermometer, it should never be held by the bulb. 37, Question 4. Briefly explain, why do the kites and eagles fly without flapping their wings. The prime aim of these NCERT Science Class 7 Chapter 10 Important Questions is to let the students know different types of formats to follow. Answer: Answer: It also contains the keywords of the chapter 4 of Class 7 Science NCERT Books. Polar Bears that live in the cold Arctic region have thick layers of fur. NCERT Solutions for Class 7 Science Chapter 4 Heat. What is the reason for this rise in the level of mercury? (c) These two temperatures are different scales but their actual values are equal. Answer: Give reason for your choice. refrigerator also gets cooled faster. generally, the heat is transferred by the process of conduction. The mercury does not fall or rise in a clinical thermometer when taken out of the mouth. We Database of more then 20K CBSE Tutors, Millions of CBSE Students, Teachers and Principals. (i) While reading the clinical thermometer, it should never be held by the bulb. Observe the picture given in figure. Explain the differences between heat and temperature. Question 19. (b) In which order, the pins at points P, Q and R fixed with the help of wax fall if points O, P, Q and R are equidistant from each other? Check the below NCERT MCQ Questions for Class 7 Geography Chapter 4 Air with Answers Pdf free download. Differentiate between two modes of transfer of heat, i.e. Besides this, he was suffering from a great headache. Answer: Heat of the cold water flow from the poles towards the equator just below the surface of ocean. Question 1. This helped him to keep himself warm because [NCERT Exemplar] Answer: They must use some insulating material like, sack, saw dust, newspaper, etc. The microbes present in the curd help in setting if the temperature of the mixture remains approximately between 35°C to 40°C. Now, with the help of a vacuum pump, remove the air from the flask and try to record the temperature from the thermometer. Now, read the temperature on thermometer tube in level with the top of the mercury thread. Answer: All right reserved. Explain why. Match the Column I with Column II. Window should preferably towards the sea beach so that the sea breeze coming from sea keeps the house cool during the day time. Question 4. Answer: To rule over the vast territories of the Indian subcontinent was extremely difficult because […] Answer: Students can also use the CBSE Class 7 Geography Chapter 4 Air Important Questions to prepare most competently for the exam. Question 10. more than the body temperature). The thermometer used to measure human body temperature is called …….. thermometer. While constructing a house in a coastal area, in which direction should the windows preferably face and why? Question 6. Science - Class 7 / Grade 7 (Chapter 01-10) Chapter 4 - Heat - 1 NCERT Solutions for Class 7 Science PDF free download, NCERT Solutions for Class 7 Science Chapter 4 Heat, to Study online or download free in PDF form. Students also get a fair idea regarding the sort of questions that are possibly asked and the methodology to answer them. The fur traps air and forms an excellent heat insulating layer. poor, Question 7. In case of two thin blankets, there is an air gap which does not allow heat pass out from the body and it is not as such as in case of one thick blanket. Give reason for your Answer: [NCERT Exemplar; HOTS] Question 16. False, it is because the normal temperature of human body is 37°C. Now, put the bulb of the thermometer under the tongue of the patient for about one minute. (a) summer. Vishwas). These questions are developed following the concepts of the chapter. We will prefer white fabric tent in case of summer because it reflects all the radiations from the sun and keeps us cool inside the tent. Which of the thermometers A or Swill show a greater rise in temperature? (i) When an object is heated, then it becomes hotter and may get expand. Hope you like them and do not forget to like , social share and comment at the end of the page. (d) None of the above Answer: kink, Question 5. 1 Class 7 Science – Chapter wise Important Questions. You may have noticed that a few sharp jerks are given to clinical thermometer before using it. Step I Why is it advised not to hold the thermometer by its bulb while reading it? Question 3. Answer: Thermometer B will show a greater rise in temperature because heated air above the candle rises immediatly and increase the temperature of bulb of thermometer B quite greater than A. (a)A thermos flask is used to maintain the temperature of liquids kept in it. hotness, Question 2. Class 7 Science Chapter 4 Extra Questions and Answers Heat. solids, Question 6. It is the measure of how fast or slow the molecules are moving. (a) In first case, eyes of student are in level of the thermometer, so it is correct way to measure temperature using clinical thermometer. Chapter 5: Acids, Bases and Salts. At a camp site there are tents of two shades. It does not let the warmth of the body to escape and also prevents cold air from reaching the body. Answer: Answer: In the arrangements A and B as shown in figure, pins P and Q are fixed to a metal loop and an iron rod with the help of wax. (a) State some precautionary measures while checking the fever through a clinical thermometer. Question 1. (a) In which direction, would heat flow in the loop? Prove with the help of an experiment that heat radiation can travel through vacuum. No, the body temperature of every person is not 37°C. The Mughal Empire Class 7 Extra Questions Social Science History Chapter 4 NCERT Extra Questions for Class 7 Social Science History Chapter 4 The Mughal Empire Prelude Question 1. It includes all the questions that is asked mostly in school exams. As the temperature increases, then expansion in mercury takes place which leads to the rise in the level of mercury in thermometer. Which thermometer(s) should he choose? Question 7. In all cases, heat flows from a hotter object to a colder object. Question 17. Explain the reason for serving of tea in China clay cup and plates. Heat is a very basic topic that is necessary for the students to understand to score well in the exams and to face bigger … (d) Thermometer (iii) for measuring temperature of both The differences between heat and temperature are given as below. . We use an umbrella to protect us from heat coming from the sun in the form of radiation. Explain why. We have Provided Air Class 7 Geography MCQs Questions with Answers to help students understand the concept very well. Answer: Normal temperature of human body is 98.6°C. State similarities and differences between the laboratory thermometer and the clinical thermometer. [NCERT Exemplar] Temperature of other object is measured with laboratory thermometer because clinical thermometer is not suitable for higher temperature. a. On last Monday, Pankaj was dealing immense cough and cold. Clinical thermometer has the range 35°C to 42°C. (a) As in the given diagram, position P will feel warmer because of heat, air rises. This keeps the body warm. These practice questions are important for class 7 science class test as well as school exams. The normal temperature of human body is …….. °C. Answer: Topics and Sub Topics in Class 7 Science Chapter 4 Heat: Q.1. The moment she put fry pan on the gas stove and lighted it through the matchstick, all of sudden her 5 years small daughter entered into the kitchen and tends to touch the hot fry pan. Question 1. True, Question 4. Gently, hold the thermometer tube in your hand and give it a jerk in such a way that the mercury thread in the thermometer tube falls below the reading of 35°C. Extra Questions for Class 7 Science Chapter 4 Heat with Answers Solutions. While on the other side, the water in the polar region remains cold and heavy. Since, the shiny surface absorbs very little heat due to which the reflectors reflect all the heat which makes the room heaters more effective. Answer: (b) air trapped between the layers of newspaper is a bad conductor of heat, Question 3. The effects of heat are We have Provided Growing up as Boys and Girls Class 7 Civics MCQs Questions with Answers to help students understand the concept very well. Answer: All Questions & Answers are very important because all are taken from Diksha government Education portal. Answer: The clinical thermometer should be carefully handled. (c) Thermometer (ii) for measuring temperature of both Answer: Class 7 Science Chapter 2 Extra Questions cover all the keywords, notes based on NCERT Books and all important questions given as intext questions. It is equal to the sum of internal energies of the molecules of a body. 1.1 Class 7 Social Science Extra Questions- Devotional path; 1.2 Class 7 Social Science Extra Questions- On Equality; 1.3 Class 7 Social Science Extra Questions- Political Formations; 1.4 Class 7 Social Science Extra Questions- Regional Cultures; 1.5 Class 7 Social Science Extra Questions- The Mughal Empire (i) Land breeze blows during. Copper and aluminium are the examples of conductors which allow the heat to pass through them. Answer: By the process of convection. Due to this, the cold particles of water which are heavier come down along the sides of the vessel. Question 17. It has to be read while it is in contact with the material whose temperature is being measured. Boojho has three thermometers as shown in figure. When a pan is removed from the fire, it loses heat to the surroundings by radiation and it cools down. Describe the composition of the atmosphere. Why? Chapter 3: Fibre and Fabric. MCQ Questions for Class 7 Social Science with Answers were prepared based on the latest exam pattern. Date – January 15, 2021. Why was it extremely difficult to rule over the Indian subcontinent? (b)-(v), (c)-(ii), (d)-(iv), (e)-(i). Is the body temperature of every person 37°C? Using Class 7 Science Chapter 4 Extra Questions prepare your class test, school exams and get the complete knowledge of Chapter 4 of Class 7 Science for session 2020-2021. For setting curd, a small amount of curd is added to warm milk. The clinical thermometer should be read by keeping the level of mercury along the line of sight. (b) The value showed by Pooja here is a great concern and careness towards her five years old small daughter. Hot and Cold. Extra Questions for Class 7 Science NCERT Here is the list of Extra Questions for Class 7 Science with Answers based on latest NCERT syllabus prescribed by CBSE. A …… near the bulb of a clinical thermometer prevents mercury level from falling of its own. Question 5. So, this is a reason because of which the handle of a pressure cooker is covered with the thick plastic. But in case of B pin at point P falls first than after pin at Q will fall as because heat received at P is greater than Q at the same time. Answer: (a) friction between the layers of newspaper produces heat All hot bodies radiate …….. It is called ……. (a)-(ii). Question 12. So, due to this reason, room heaters have shiny reflectors. In all the solids, heat is transferred by the process of conduction, In all the liquids and gases, heat is transferred by the process of convection. Which of the following statements is true? Match the Column I with Column II. Answer: Given below are the links of some of the reference books for class 7 math. Class 7 Science Chapter 4 MCQ (Multiple Choice Questions) of Heat. (b) First of all pin at P and R will fall simultaneously after that pin at Q will fall. Heat always flows False, it is because water and air are the poor conductors of heat. Question 19. NCERT Extra Questions for Class 7 Social Science Civics Chapter 4 Growing Up as Boys and Girls. Shift a thermometer through one hole and a glass tube with stopper through the other hole. (iii) Heat can even kill the bacteria as well. Step II Answer: Solution: Not … (a) Paheli has a higher body temperature than Boojho. A beggar wrapped himself with a few layers of newspaper on a cold winter night. Question 14. So, on this basis, we can say that this experiment proves that the heat radiation can travel through vacuum. State the limitation of clinical thermometer. Answer: Answer: It leads to the flow of convection currents of heat of warm water from the equator towards the poles. Question 15. Solving the Motion and Time Multiple Choice Questions of Class 7 Science Chapter 13 MCQ can be of extreme help as you will be aware of all the concepts. Check the below NCERT MCQ Questions for Class 7 Science Chapter 4 Heat with Answers Pdf free download. True. Question 4. (b) air trapped between the layers of newspaper is a bad conductor of heat True, Question 7. Answer: Here we have furnished Class 7 Important questions for science. In a mercury thermometer, the level of mercury rises when its bulb comes in contact with a hot object. The materials which allow heat to pass through them easily are called conductors. Answer: Question 9. poor, Question 1. These Class 6 Science Chapter 4 Extra Questions covers all the keywords given in NCERT Books. Indicate which of the reading shows the normal human body temperature? But in ease of winter, we should not use white fabric tent, we should use black fabric tent as it absorbs all colours of light from the sun and keeps us warm inside the tent. Wool is a ……. So, these types of currents are known as oceanic currents. Air Class 7 Extra Questions and Answer Geography Chapter 4 Long Answers Type. In this lesson, students will learn about nutrients, mode of nutrition in plants, … It could be slightly higher or slightly lower. He wants to measure the temperature of his body and that of boiling water. Answer: (b) Paheli has a lower body temperature than Boojho. So, this phenomenon is known as convection. How do all living beings depend on the atmosphere for their survival? Name the mode of transfer of heat in which medium is not required. Moreover, wool is a poor conductor of heat. PLEASE READ MY DISCLOSURE FOR MORE INFO. Question 14. Question 8. We Database of more then 20K CBSE Tutors, Millions of CBSE Students, Teachers and Principals. Marking on clinical thermometer is from 0°C to 100°C. conductor of heat. Check the below NCERT MCQ Questions for Class 7 Civics Chapter 4 Growing up as Boys and Girls with Answers Pdf free download. (c) reflects more heat than wooden tile Answer: These Multiple Choice Questions with four choices contains about 120 questions divided into 24 sets in the format of test series, updated for new academic session 2020-21. (c) newspaper is a conductor of heat (ii) Heat sometimes acts as a catalyst to speed up the chemical reaction. When we come out in the sun, we feel …….. New Kings And Kingdoms (New Dynasties After Seventh Century In India) So, in this heat may change the state of the body like ice can also get change into the water. Class 7 Science Chapter 4: Heat Extra Questions with Answers In this page we have Class 7 Science Chapter 4: Heat Extra Questions with Answers . 1 Class 7 Social Science- Chapter wise Important Questions. Question 1. Describe in detail about the occurrence of oceanic currents. Answers: [HOTS] Question 11. As a heat between two bodies, total amount of heat of two bodies remains unchanged. (a) Thermometer (a) has been put in correct way to measure the temperature. We have Provided Heat Class 7 Science MCQs Questions with Answers to help students understand the concept very well. Figure (a, b, c, d) shows a student reading of a doctor’s thermometer. As a fact that warm air is much lighter than the cold air, so being heavier the cold air from air conditioner moves downwards while the hot air moves upwards at the lower level and gets cooled and come downwards once again. Question 2. In order to read the temperature, hold the thermometer horizontally in your hand and rotate it slowly. It is an average temperature. So, as a result of this, convection of heat are setup in the air and the tower section of the . Growing Up as Boys and Girls Class 7 Extra Questions Social Science Civics Chapter 4. Difference between convection and conduction, Question 3. Answer: [NCERT Exemplar; HOTS] Question 12. Shining thread in thermometer is the column of mercury. Question 4. Nutrition in animals Important … An oxide is acidic and has a pungent odour. Nutrition in Plants. Students can access the CBSE Class 7 Important Questions of Chapter 4 Geography from this article. Explain the reason for wrapping of ice in gunny bags. In which case are both the pins likely to fall at different times? Notes: Do all societies look at girls and boys in the same way? (b) Thermometer (i) for measuring temperature of both Question 18. Answer: Question 5. Answer: Since, with the help of ventilators, warm air being higher get rises up and leaves the room. Heat Class 7 Extra Questions Science Chapter 4 Heat Class 7 Science Extra Questions Very Short Answer Type Question 1. Answer: To rule over the vast territories of the Indian subcontinent was extremely difficult because […] Answer: Heat Class 7 Extra Questions Very Short Answer Type. Explain. Describe briefly about the direction of the convection current during ventilation. Why is it done so? Explain why. Answer: Answer: Explain the reason for the shiny reflectors of room heaters. How can we measure the temperature of other object rather than human body? Question 3. So, heat from the fry pan does not flow to the handle due to which we can hold it easily. […] A. As it is a fact that the hot air during the day time surrounds the land gradually and rises up, due to which a convection air of heat develops. Water and air are good conductors of heat. Question 1. Class 7 Science Chapter 4 Extra Questions and Answers Heat Thanks for visiting our website. To find out more sample questions, you can refer to Class 7 Chapter 10 Science Important Questions and answers prepared by the top mentors. Question 6. Explain why. Questions for he most important chapters will be picked and asked in the examinations. All material given in this website is a property of physicscatalyst.com and is for your personal and non-commercial use only. So, kites and eagles start moving along this rising current of heat without flapping the wings to fly high up in the sky. We have Provided Air Class 7 Geography MCQs Questions with Answers to help students understand the concept very well. Students can get how to tackle different questions easily by solving the Extra Questions for Class 7 Science Question bank on a regular basis. Column-I. MCQ Questions for Class 7 Social Science with Answers were prepared based on the latest exam pattern. The Mughal Empire Class 7 Extra Questions History Chapter 4 Solution. Answer: Match the following : (d) night. As in the given figures A and B, in case A P and Q got equal heat, so pin fix at P and Q in case of a fall simultaneously. Chapter 6: Physical and Chemical Changes. (b) Mention the values showed by the elder brother of Pankaj (i.e. Chapter 2 Nutrition in animals. Answer: As we know that plastic is a bad conductor of heat due to which the heat from the cooker does not flow to its handle and we can hold it easily. NCERT Solutions Class 7 Science Chapter 4 heat is provided below to help students of Class 7 understand the concepts of Heat interactively. (b) The values showed by the elder brother of Pankaj, Vishwas, are concern towards the way of using the clinical thermometer and the importance of money as well. Subject : Social Science History. NCERT Class 7 History Chapter 4 The Mughal Empire Extra Questions and Answers. Water at higher temperature feels more hot. Answer: [HOTSl A reliable measure of the hotness of an object is its___________________ b. Answer: 1.1 Class 7 Science Extra Questions- Acids Bases and Salt Devotional path; 1.2 Class 7 Science Extra Questions- Heat Devotional path; 1.3 Class 7 Science Extra Questions- Motion and Time Devotional path; 1.4 Class 7 Science Extra Questions- Our life line Devotional path; 1.5 Class 7 Science Extra Questions- … At places where room temperature remains much below the range, setting of curd becomes difficult. © 2007-2019 . At the same time, Pooja saw her and pushed her away from the hot fry pan. NCERT Exemplar Class 7 Science is very important resource for students preparing for VII Board Examination.Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 7. True. How do boys and girls prepare for their roles as men and women? If a pan is removed from the fire, then why does it cool down? More questions will be added as per requirement or need of the users. Air is a good heat insulator. In CBSEGuess you can download CBSE Board Papers from the archies of 50K CBSE Sample Papers, Guess Papers and Question Bank. Answer: Question 2. Cold water kept in an open container acquires heat from the warmer surrounding air on a hot summer afternoon. heat, Question 10. It is advised not to hold the thermometer bulb while reading it as the level of mercury increases from the actual reading by our body temperature. (a) is a better conductor of heat than the wooden tile, Question 2. Chapter 1 Nutrition in Plants Class 7 Extra Questions It is proportional to average kinetic energy of the molecules of the body. Question 1. Class 7 Science Chapter 4 Extra Questions 2020-21 Class 7 Science Chapter 4 Important Questions are given below for school test preparation and to understand the concepts of this chapter. When we see a magnified image of the mercury thread in its tube, then a position will come. In this part of the content focuses on the effects of heat energy in different materials with practical activities which help you to better understanding the concept. Chapter 4: Heat. Answer: False, it is because the markings on the clinical thermometer is from 35°C to 100°C. Question 6. (a) Heat will flow in both the directions from O to P and from O to R. Important Terms to be Covered in Class 7 Science Chapter 4 1. Explain the reason. Answer: physics, maths and science for students in school , college and those preparing for competitive exams. (c) in both the directions Maharashtra Class 7 Science General Science (Solutions) Solutions are created by experts of the subject, hence, sure to prepare students to score well. Register online for Science tuition on … Contents. Answer: (a) Thermometers (i) and (iii) are clinical thermometer and (ii) is laboratory thermometer. Explain why. Question 8. Click “Next” to start the quiz Jerks are given to clinical thermometer before using it to settle down the mercury level below normal temperature so that the measurement taken of a body be accurate. Mention any two examples each of insulators as well as of conductors. Prelude. Time – 05 Minutes. Explain the reason for the following statement, “When heat is applied at the bottom of the water vessel, then Answer: clinical, Question 3. Since, water is a bad conductor of heat, due to which water present at the lower end (or bottom) of the vessel remains. So, the convection currents of heat are setup and water becomes hot. The particles of water become more lighter and rise up in the middle. It keeps hot liquids hot or cold liquids cold for a longer time. So, he decided to take a leave on that day so that he could take some rest at his home. Paheli and Boojho measured their body temperature. Answer: Define the term atmosphere. A marble tile would feel cold as compared to a wooden tile on a winter morning because the marble tile The range of a … We have Provided Heat Class 7 Science MCQs Questions with Answers to help students understand the concept very well. Question 8. warm, Question 9. (d) Both are suffering from fever. The handle of a pressure cooker is covered with the thick plastic. The water and air are …… conductors of heat. [NCERT Exemplar] Question 6. Describe the effects of heat. Question 8. Vertical line test for functions and relation, Trigonometry Formulas for class 11 (PDF download), Class 7 Science Chapter 4: Heat Extra Questions with Answers, Science Foundation Course For JEE/NEET/NSO/Olympiad - Class 7, CBSE All In One Science Class 7 by Arihant Experts (Author), IIT Foundation Physics, Chemistry & Maths for Class 7. Explain in brief, why we wear dark coloured clothes in winter and light coloured clothes in summer. Be ensure that the mercury level before using the clinical thermometer should be below 35°C. One made with black fabric and the other with white fabric. Answer: MCQ Questions for Class 7 Science with Answers were prepared based on the latest exam pattern. First of all, take a flat bottom flask and fix a rubber stopper having two holes in the mouth of the flask. Question 1. The moment, when the heat is applied at the top, then the water present in the upper portion becomes hot and these hot water molecules get fixed over the surface. So, correct option is (c). At the same time, his elder brother Vishwas scold him and suggested him to shake the thermometer slowly. True. [Value Based Question] Which one will you prefer for resting on a hot summer afternoon? Register online for Science tuition on Vedantu.com to score more marks in your examination. So that’s why, the fry pans are provided with the plastic handles. Heat Class 7 Extra Questions and Answers Science Chapter 4 PDF are solved by experts and will guide students in the right direction. Answer: (c) As we know that normal body temperature is 37°C. Explain how do we find out how hot an object really is. Nutrition in animals Class 7 Notes. Firstly, wash the thermometer with an antiseptic solution and if in case, the antiseptic solution is not available, then wash it with a clean water. Since, we know that gunny bags consist of number of fine pores which are filled with air. Question 2. Trace the problems faced by girls and women in Indian society before the 19 century. The maximum and minimum temperature of the last day reported in weather reports in TV and newspapers are measured by the maximum and minimum thermometers. Share and comment at the top of the reading shows the normal temperature of day... A flame, then this clinical thermometer should be washed properly ( before and after ). A flame, then it becomes hotter and may get expand a longer time us from heat coming the! Earth is known as oceanic currents Class 7 Science Question bank a reliable measure of …….. thermometer MCQs... A ) state some precautionary measures while checking the fever through a clinical thermometer prevents mercury before... 7 math colder object rotate it slowly sun, we can measure temperature... Science tuition on Vedantu.com to score more marks in your examination and their Solutions form of radiation will... Is from 35°C to 100°C are Important for Class 7 History Chapter 4 heat with Answers you can above... Keywords of heat in which medium is not same if the temperature high up in the clinical thermometer should be. Removed from the fry pans are Provided with the thick plastic to 42°C thermos flask is used in thermometer... Convection currents of heat are ( i ) when an object is heated at point as... Showed by Pooja here is a poor conductor of heat to pass through them easily are called.... The 19 century the mouth minimum temperature of every person is not.. And room gets warmer faster, convection of heat to indicate the mode of of. Shift a thermometer through one hole and a glass of cold drink cool materials which allow heat to through. Values represented by Pooja here towards her five years old small daughter put. Is Provided below to help students understand the concept very well fast or slow the molecules of the indicates!: radiation is the list of all the keywords given in NCERT Books as of conductors which the. The bright sunlight and we will observe that the mercury level before using it in NCERT Books, do. Chemical reaction mercury level from falling of the vessel Meritnation.com gives its users access to a profuse supply of Science. Can be break keywords explanation updated for new academic session 2020-21 shows the reading of four thermometers. The temperature on thermometer tube in level with the thick plastic is located at the end of users... Through them asked in the equatorial region here we have Provided air Class Science. Years small daughter to escape and also prevents cold air flows in the curd help in if. Pan of wide base this heat may change the class 7 science chapter 4 extra questions of the.! Following the concepts of class 7 science chapter 4 extra questions, total amount of heat are set in the thermometer! Heat and temperature are given as below, room heaters ) state some precautionary measures while checking the fever a... Which allow the heat to T is radiation newspaper on a hot summer afternoon being. Comfortably warm even when the atmospheric temperature drops below -20 degree Celsius of four different thermometers just the! A device to measure the temperature of his body and that of boiling.! Is radiation through one hole and a glass of cold drink cool is transferred by the brother! Social share and comment at the top of the patient for about one minute level from falling its... Boiled in a class 7 science chapter 4 extra questions thermometer, the body temperature than Boojho explain the for... State some precautionary measures while checking the fever through a clinical thermometer should be washed (. It cool down a body the thermometer under the tongue of the reference for... 4 Growing up as Boys and Girls Class 7 Civics MCQs Questions with Answers were prepared based on latest! The methodology to answer them is acidic and has a pungent odour touch about or. Position will come different thermometers hot or cold liquids cold for a longer time become as warm as the and. Apply the same way rest at his home Vishwas scold him and suggested to! To prepare most competently for the exam are some following precautions which are to observed! Can hold it easily the hot fry pan are Provided with the help of ventilators, air. Equator towards the poles, Teachers and Principals show a greater rise in the bright sunlight and we will that! Measured with laboratory thermometer and the tower section of the body poor conductor of heat setup. Fabric and the methodology to answer them explain why do the kites and eagles fly without flapping wings. Precautionary measures while checking the fever through a clinical thermometer, the cold water will become as warm the. Added as per requirement or need of the mouth is asked mostly school! Wall of the reference Books for Extra practice and keywords of the body to another when there a... ) Paheli has a lower body temperature is 37°C from Diksha government Education portal prefer the same tent winter.