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| WK | LSN | TOPIC | SUB-TOPIC | OBJECTIVES | T/L ACTIVITIES | T/L AIDS | REFERENCE | REMARKS |
|---|---|---|---|---|---|---|---|---|
| 20 | 1 |
Quantity of Heat
|
Evaporation and cooling effects
|
By the end of the
lesson, the learner
should be able to:
Define evaporation and distinguish from boiling - Investigate factors affecting evaporation rate - Demonstrate cooling effect of evaporation - Explain applications of evaporation cooling |
In groups, learners are guided to:
Experiments on evaporation rate factors - Demonstration of cooling by evaporation using ether - Investigation of surface area, temperature and humidity effects - Discussion on natural cooling systems |
Various liquids, Beakers, Fans, Thermometers, Ether, Test tubes, Humidity measuring devices
|
KLB Secondary Physics Form 3, Pages 230-233
|
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