Chapters
Chapter 2: Nutrition in Animals
Chapter 3: Fibre to Fabric
Chapter 4: Heat
Chapter 5: Acids, Bases and Salts
Chapter 6: Physical and Chemical Changes
Chapter 7: Weather, Climate and Adaptations of Animals to Climate
Chapter 8: Wind Storms and Cyclones
Chapter 9: Soil
Chapter 10: Respiration in Organisms
Chapter 11: Transportation in Animals and Plants
Chapter 12: Reproduction in Plants
Chapter 13: Motion and Time
Chapter 14: Electric Current and Its Effects
Chapter 15: Light
Chapter 16: Water: A Precious Resource
Chapter 17: Forests: Our Lifeline
Chapter 18: Wastewater Story
Chapter 4: Heat
NCERT solutions for Class 7 Science Chapter 4 Heat Exercises [Pages 45 - 47]
State similarities and differences between the laboratory thermometer and the clinical thermometer.
Give two examples each of conductors and insulators of heat.
Fill in the blanks:
The hotness of an object is determined by its __ __.
Fill in the blanks:
Temperature of boiling water cannot be measured by a __ __ thermometer.
Fill in the blanks:
Temperature is measured in degree ___ _.
Fill in the blanks:
No medium is required for transfer of heat by the process of ___ _.
Fill in the blanks
A cold steel spoon is dipped in a cup of hot milk. It transfers heat to its other end by the process of __ _ _.
Fill in the blanks:
Clothes of ______________ colours absorb more heat better than clothes of light colours.
Match the following:
| Land breeze blows during | summer |
| Sea breeze blows during | winter |
| Dark coloured clothes are preferred during | day |
| Light coloured clothes are preferred during | night |
Discuss why wearing more layers of clothing during winters keeps us warmer than wearing just one thick piece of clothing.
Look at Figure. Mark where the heat is being transferred by conduction, by convection and by radiation
In places of hot climate it is advised that the outer walls of houses be painted white. Explain.
One litre of water at 30°C is mixed with one litre of water at 50°C. The temperature of the mixture will be
80°C
more than 50°C but less than 80°C
20°C
between 30°C and 50°C
An iron ball at 40°C is dropped in a mug containing water at 40°C.
The heat will
flow from iron ball to water.
not flow from iron ball to water or from water to iron ball.
flow from water to iron ball.
increase the temperature of both.
A wooden spoon is dipped in a cup of ice cream. Its other end
becomes cold by the process of conduction
becomes cold by the process of convection.
becomes cold by the process of radiation.
does not become cold.
Stainless steel pans are usually provided with copper bottoms. The reason for this could be that
copper bottom makes the pan more durable.
such pans appear colourful.
copper is a better conductor of heat than the stainless steel
copper is easier to clean than the stainless steel.
Chapter 4: Heat
NCERT solutions for Class 7 Science chapter 4 - Heat
NCERT solutions for Class 7 Science chapter 4 (Heat) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CBSE Class 7 Science solutions in a manner that help students grasp basic concepts better and faster.
Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. NCERT textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.
Concepts covered in Class 7 Science chapter 4 Heat are Hot and Cold Objects, Thermometer and Its Types, Measuring Temperature, Transfer of Heat, Kinds of Clothes Wear in Summer and Winter, Heat and Its Unit, Temperatures, Conduction, Convection, Radiation.
Using NCERT Class 7 solutions Heat exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in NCERT Solutions are important questions that can be asked in the final exam. Maximum students of CBSE Class 7 prefer NCERT Textbook Solutions to score more in exam.
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