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NCERT Solutions for Class 7 Science Chapter 4 Heat

iacst-2022

In the chapter of heat, students will learn about the various ways in which heat can flow from one object to another, i.e., Conduction, Convection and Radiation. Experiences from daily lives such as the kind of clothes worn by us in different climates have been discussed. The chapter also discusses the different types of material that conduct heat and the flow of heat.

  • Heat is the form of energy that is transferred between two bodies at two different temperatures when kept in contact.
  • The heat flows from a body at a higher temperature to a body at a lower temperature.
  • Temperature is a measure of the degree of hotness of an object.
  • The thermometer is a device used for measuring temperatures.
  • Clinical thermometer is used to measure our body temperature. The range of this thermometer is from 35°C to 42°C.
  • The normal temperature of the human body is 37°C.
  • There are three ways in which heat can flow from one object to another, i.e., conduction, convection, and radiation.
  • The materials which allow heat to pass through them easily are conductors of heat, and the materials which do not allow heat to pass through them easily are called insulators.

 

 

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Also See
Chapter 1 Nutrition in Plants Chapter 2 Nutrition in Animals Chapter 3 Fiber to Fabric
Chapter 5 Acids, Bases and Salts Chapter 6 Physical and Chemical Changes Chapter 7 Weather, Climate and Adaptations of Animals to Climate
Chapter 8 Winds, 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

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