NCERT Solutions Class 7 Science Chapter 4 Heat – Here are all the NCERT solutions for Class 7 Science Chapter 4. This solution contains questions, answers, images, explanations of the complete chapter 4 titled Heat From of Science taught in class 7. If you are a student of class 7 who is using NCERT Textbook to study Science, then you must come across chapter 4 Heat. After you have studied lesson, you must be looking for answers of its questions. Here you can get complete NCERT Solutions for Class 7 Science Chapter 4 Heat in one place.
NCERT Solutions Class 7 Science Chapter 4 Heat
Here on AglaSem Schools, you can access to NCERT Book Solutions in free pdf for Science for Class 7 so that you can refer them as and when required. The NCERT Solutions to the questions after every unit of NCERT textbooks aimed at helping students solving difficult questions.
For a better understanding of this chapter, you should also see summary of Chapter 4 Heat , Science, Class 7.
| Class | 7 |
| Subject | Science |
| Book | Science |
| Chapter Number | 4 |
| Chapter Name |
Heat |
NCERT Solutions Class 7 Science chapter 4 Heat
Class 7, Science chapter 4, Heat solutions are given below in PDF format. You can view them online or download PDF file for future use.
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Download NCERT Solutions Class 7 Science chapter 4 Heat In PDF Format
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Question & Answer
Q.1: State similarities and differences between the laboratory thermometer and the clinical thermometer.
Ans : Similarities: (i) Both clinical and laboratory thermometers have long, narrow, uniform glass tubes. (ii) The bulbs of both the thermometers have mercury in them. Differences: (i) The temperature range of clinical thermometers is from 350C to 420C while that of laboratory thermometer is from —100C to 1100C. (ii) Clinical thermometer is used to measure the temperature of a human body. However, laboratory thermometer cannot be used to measure the temperature of a human body. (iii) The least count of both the thermometers differs. (iv) Unlike clinical thermometer that can be tilted, laboratory thermometer is kept upright while reading the temperature values.
Q.2: Give two examples each of conductors and insulators of heat.
Ans : Two examples of conductors of heat are: (i) Aluminium (ii) Iron Two examples of insulators of heat are: (i) Wood (ii) Plastic
Q.3: Fill in the blanks :
(a) The hotness of an object is determined by its __________.
(b) Temperature of boiling water cannot be measured by a _____________ thermometer.
(c) Temperature is measured in degree ______________.
(d) No medium is required for transfer of heat by the process of __________.
(e) A cold steel spoon is dipped in a cup of hot milk. Heat is transferred to its other end by the process of ______________.
(f ) Clothes of ______________ colours absorb more heat better than clothes of light colours.
Ans : (a) The hotness of an object is determined by its temperature. (b) Temperature of boiling water cannot be measured by a clinical thermometer. (c) Temperature is measured in degree Celsius. (d) No medium is required for transfer of heat by the process of radiation. (e) A cold steel spoon is dipped in a cup of hot milk. It transfers heat to its other end by the process of conduction. (f) Clothes of dark colours absorb heat better than clothes of light colours.
Q.4: Discuss why wearing more layers of clothing during winters keeps us warmer than wearing just one thick piece of clothing.
Ans : During winters, we prefer wearing more layers of clothing than just one thick piece of clothing because air gets trapped in between the various clothing layers. Being a poor conductor of heat, air prevents heat loss from our body. Hence, layers of clothing keep us warmer than a single layer.
Q.5: Look at Fig Mark where the heat is being transferred by conduction, by convection and by radiation
Ans : (i) Transfer of heat from burner to pan is by radiation. (ii) Transfer of heat from pan to water is by conduction. (iii) Transfer of heat within water is by convection.
NCERT / CBSE Book for Class 7 Science
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- Click here for NCERT Book for Class 7 Science
- Click here to buy NCERT Book for Class 7 Science
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