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Lesson Sequence |
Previous Lesson | Next Lesson |
| P1 part 1 | P1 Lesson 2 Energy transfers, Sankey diagrams and Efficiency. | P1 Lesson 5 Evaporation and Condensation |
| Year 9 | Y9 Energy Lesson 4&5 Assignment 1 | P1 Lesson 8&9 Emission of Infra Red radiation |
Learning outcomes and Specification reference[]
| P1.1.3 Energy transfer by heating | P1 Lesson 3&4 Conduction and Convection | ||
| a | The transfer of energy by conduction and convection involves particles, and how this transfer takes place. | Understand in simple terms how the arrangement and movement of particles determine whether material is a conductor or insulator. | |
| Understand the role of free electrons in conduction through a metal. | |||
| Use the idea of particles moving apart to make a fluid less dense and to explain simple applications of convection. | |||
Full Specification Text[]
a) The transfer of energy by conduction, convection, evaporation and condensation involves particles,
and how this transfer takes place.
Starter Activities[]
- Worksheet for starter acitivty. Students plot a graph of the mass of air as it is heated. Graphing skills.File:Mass of Air.doc
- Light a match and hold it up in front of the projector to show the convection current
Activities to introduce new ideas[]
- File:Thermos (Vacuum) Flask.ppt
- Excellent online simulation of gas for discussion of convection http://www.falstad.com/gas/
Activities to practice applying new knowledge[]
- No activities have been added to this lesson plan in this section
Practical activities[]
Demonstrations[]
- Class to test the warmth of a wooden block and an aluminium block and note down their observations (will probably find that the wood feels warmer than the metal). Class make a prediction about which block will melt an ice cube the quickest. Then to test by putting the ice cube on the block and timing the melting. Class to explain why the metal feels cold but melts the ice quicker than the wood. Ideas about the efficiency of metal as a conductor compared to wood. A video of this experiment from STEM centre
- Fill a large bin bag with hot air from a fan heater and allow it to rise to the ceiling
- Tape along two edges of a plastic dust sheet to create a huge plastic bag. Fill with hot air from a fan heater and allow students to stand inside
- Teabag hot air balloons. A video that explains how to perform the demonstration.
Class practicals[]
- Put a match as close as possible to a bunsen burner. why does it not light ? Air as an insulator
- In a boiling tube of water have an ice cube at the bottom held down by a small metal gauze. Heat top so it boils and ice still remains. Water as a poor conductor
Links[]
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