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Chapter 7 of 12
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Heat Transfer in Nature

CBSE · Class 7 · Science

Flashcards for Heat Transfer in Nature — CBSE Class 7 Science. Quick Q&A cards covering key concepts, definitions, and formulas.

44 questions23 flashcards5 concepts

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23 Flashcards
Card 1Conduction

What is conduction and how does it work?

Answer

Conduction is the process of heat transfer from the hotter part of an object to the colder part. In this process, particles receive heat and pass it on to neighboring particles, but the particles them

Card 2Conduction

Why are cooking utensils generally made of metals?

Answer

Cooking utensils are made of metals because metals are good conductors of heat. They allow heat to pass through them easily, which helps in cooking food efficiently by transferring heat from the flame

Card 3Conduction

What are good conductors and poor conductors of heat? Give examples.

Answer

Good conductors of heat: Materials that allow heat to pass through them easily (e.g., metals like steel, iron, aluminum, copper). Poor conductors (insulators) of heat: Materials that do not allow heat

Card 4Conduction

Why do we wear woolen clothes in winter to keep warm?

Answer

Woolen fabric traps air in its pores. Since air is a poor conductor of heat, it reduces heat flow from our bodies to the surroundings. The trapped air acts as an insulator, preventing heat loss and ke

Card 5Convection

What is convection and how is it different from conduction?

Answer

Convection is the process of heat transfer by the actual movement of particles in liquids and gases. Unlike conduction where particles don't move from their positions, in convection, heated particles

Card 6Convection

Why does smoke from incense sticks (agarbatti) rise upward?

Answer

Smoke is a mixture of hot gases and tiny solid particles. When heated, the smoke becomes lighter than the surrounding cooler air. Due to this difference in density, the lighter hot smoke rises upward

Card 7Convection

Explain how convection currents form in heated water.

Answer

When water at the bottom of a container is heated, it becomes hot, expands, becomes lighter, and rises up. The cooler, heavier water from the sides moves down to take its place. This creates a circula

Card 8Convection

What is sea breeze and when does it occur?

Answer

Sea breeze is the movement of cooler air from the sea towards the land during the day. It occurs because land heats up faster than water during daytime, causing warm air above land to rise. Cooler air

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Frequently Asked Questions

What are the important topics in Heat Transfer in Nature for CBSE Class 7 Science?
Heat Transfer in Nature covers several key topics that are frequently asked in CBSE Class 7 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Heat Transfer in Nature — CBSE Class 7 Science?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.
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There are 23 flashcards for Heat Transfer in Nature covering key definitions, formulas, and concepts. Use them daily for 10–15 minutes for best results.

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

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