Difference between revisions of "3-FAM-06"
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(New page: ==Outcomes== * In order to form vapor, the molecules of the liquid must overcome the forces of attraction between them. * The temperature of a boiling liquid remains constant, even when m...) |
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* In order to form vapor, the molecules of the liquid must overcome the forces of attraction between them. | * In order to form vapor, the molecules of the liquid must overcome the forces of attraction between them. | ||
* The temperature of a boiling liquid remains constant, even when more heat is added. | * The temperature of a boiling liquid remains constant, even when more heat is added. | ||
| + | * Understand the process of Evaporation and how it is used for cooling in a range of applications | ||
==[[Specifications|Specification]] References== | ==[[Specifications|Specification]] References== | ||
Revision as of 03:34, 10 July 2008
Contents
Outcomes
- In order to form vapor, the molecules of the liquid must overcome the forces of attraction between them.
- The temperature of a boiling liquid remains constant, even when more heat is added.
- Understand the process of Evaporation and how it is used for cooling in a range of applications
Specification References
- 5.10 Understand that a substance can change state from liquid to gas by the process of evaporation or boiling.
Main Body of Lesson
- Pupils are given a range of water samples and are asked to determine which sample is ‘contaminated’
- Find the boiling point of water samples (one distilled water/ other will salt added)
Homework
- Plot graphs and discuss + identify contaminated water sample.
- Extension – Research -Why is the boiling point different?
Additional Information
Resources Required
- Bunsen burner kit, beakers, thermometers, samples of distilled and contaminated (salt) water
Textbook References
- Physics for you pg. 55-59
Website References
Skills Addressed
- Observations and Inferring
- Collecting data and plotting graphs
Safety/Hazards
- Hot water hazard, Use of Bunsen burners, goggles required
