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Heat

Gujarat Board · Class 7 · Science

Complete topic list for Heat in Gujarat Board Class 7 Science. Key concepts, sub-topics, and what to focus on for board exams.

42 questions5 concepts

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4 Topics · Gujarat Board Class 7 Science

Topics in Heat

1

Hot and Cold – Sense of Touch vs Temperature

  • Our sense of touch is NOT always a reliable guide to judge how hot or cold an object is.
  • Activity 3.1 shows that the same water in container C feels hot to the left hand (which was in cold water) and cold to the right hand (which was in hot water).
  • This proves that our sense of touch can deceive us.
2

Measuring Temperature – Clinical and Laboratory Thermometers

  • A clinical thermometer is used to measure body temperature. Its range is 35°C to 42°C.
  • The normal human body temperature is 37°C.
  • A laboratory thermometer is used to measure the temperature of other objects. Its range is generally -10°C to 110°C.
3

Transfer of Heat – Conduction

  • Conduction is the process of heat transfer through a solid material from the hotter end to the colder end.
  • The heat is passed from one particle to the next without the particles moving themselves.
  • In Activity 3.6, wax pieces on a metal rod fall one by one starting from the end nearest to the flame — proving heat moves by conduction.
4

Transfer of Heat – Convection

  • Convection is the process of heat transfer in liquids and gases through the actual movement of the heated particles.
  • When a liquid or gas is heated, it becomes lighter (less dense) and rises up. The cooler, denser fluid sinks to take its place.
  • This creates a circular current called a convection current.

Key Concepts

Temperature is a measure of howA thermometer is a device usedConduction is the transfer of heatConvection is the transfer of heatRadiation is the transfer of heat

Frequently Asked Questions

What are the important topics in Heat for Gujarat Board Class 7 Science?
Key topics in Heat include Chapter Overview – Heat Mind Map, Heat Concepts Overview, Heat – Complete Chapter Overview. These are the concepts Gujarat Board Class 7 examiners draw on most — study them first, then practise related questions.
How to score full marks in Heat — Gujarat Board Class 7 Science?
Understand the core concepts first, then work through the 42 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Heat

All 5 chapters — Gujarat Board Class 7 Science Syllabus

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