PHYSICS LESSON PLAN

ICSE Class 7 Physics Lesson Plan

Understand the three modes of heat transfer – conduction, convection, and radiation.
Differentiate between conductors and insulators through examples.
Explain practical applications of conduction and convection in daily life.
Understand how color and texture affect heat absorption and reflection.
Describe how a thermos flask minimizes heat transfer.

Begin with a short discussion: ask students how they feel when touching a metal spoon in hot water versus a wooden one.
Explain of that heat always flows from a hotter body to a colder one.
Introduce the three modes of heat transfer:
- Conduction: Heat transfer through solids (e.g., metal rod getting hot from one end to another).
- Convection: Heat transfer in liquids and gases due to movement of particles (illustrate with breeze formation).
- Radiation: Heat transfer without any medium (e.g., Sun’s heat reaching the Earth).
Explain of conductors (metals) and insulators (wood, plastic) with classroom objects.
Discussion of real-life applications:
- Cooking utensils – good conductors of heat.
- Handles made of wood/plastic – poor conductors.
- Land and sea breezes – caused by convection currents in air.
- Black objects absorb heat faster; shining objects reflect heat.
- Thermos flask – prevents heat transfer by combining conduction, convection, and radiation barriers.
Diagrams of all three modes of heat transfer on the board for visual understanding.

Activity 1: Demonstrating Conductors and Insulators

Students to assume places metal, wood, and plastic spoons in warm water and asking students to feel (mentally imagine) which one will get warmer first.
Students identify metal as a good conductor and wood/plastic as insulators.

Activity 2: Understanding Convection (Breezes)

Explanation of land and sea breezes using a globe or diagram showing day and night heating patterns.
Students observe how warm air rises and cool air takes its place.