Difference between revisions of "5-SLG-1"
Mrsaunders (Talk | contribs) (New page: ==Outcomes== * Pupils can still use equations introduced last year * Pupils can appreciate that freezing is not instantaneous ==Specification References== *5.2 know and...) |
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==Starter== | ==Starter== | ||
| − | Using mini white boards have pupils write down anything they can remember about the pressure and denstiy topic which they started before the summer holidays. This could be definitions, formulae, experimental techniques. The idea is just for them to think back to what they've already studied. Try to go around the class with each pupil contributing to discussion. You could even finish with some questions using the 3 formulae mentioned above. | + | Using mini white boards have pupils write down anything they can remember about the pressure and denstiy topic which they started before the summer holidays. This could be definitions, formulae, experimental techniques. The idea is just for them to think back to what they've already studied. Try to go around the class with each pupil contributing to discussion. You could even finish with some questions using the 3 formulae mentioned above. |
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| + | Alternatively use the "Who wants to be a millionaire?" Pressure and Density edition. Have pupils do this on the whiteboards as the go. Pupils write their winnings on the back of their whiteboard to see when they went out (should still try all the questions to keep interest up). | ||
| + | |||
==Main Body of Lesson== | ==Main Body of Lesson== | ||
The experiment for the lesson is to observe the freezing point of Stearic acid. It starts off in the water bath as a liquid with the thermometer in the test tube. Pupils remove a test tube and then take the temperature every 30s for around 10 minutes. Before the experiment ask pupils how they can make their experiment as accurate as possible (eye level readings etc.). When finished pupils plot a graph of temperature against time marking the freezing point of the liquid (~70'''°'''C). | The experiment for the lesson is to observe the freezing point of Stearic acid. It starts off in the water bath as a liquid with the thermometer in the test tube. Pupils remove a test tube and then take the temperature every 30s for around 10 minutes. Before the experiment ask pupils how they can make their experiment as accurate as possible (eye level readings etc.). When finished pupils plot a graph of temperature against time marking the freezing point of the liquid (~70'''°'''C). | ||
Latest revision as of 10:47, 4 September 2012
Contents
Outcomes
- Pupils can still use equations introduced last year
- Pupils can appreciate that freezing is not instantaneous
Specification References
- 5.2 know and use the relationship between density, mass and volume:
- 5.3 describe experiments to determine density using direct measurements of mass and volume
- 5.4 know and use the relationship between pressure, force and area:
- 5.5 understand that the pressure at a point in a gas or liquid which is at rest acts equally in all directions
- 5.6 know and use the relationship for pressure difference: pressure difference = height × density × g
Starter
Using mini white boards have pupils write down anything they can remember about the pressure and denstiy topic which they started before the summer holidays. This could be definitions, formulae, experimental techniques. The idea is just for them to think back to what they've already studied. Try to go around the class with each pupil contributing to discussion. You could even finish with some questions using the 3 formulae mentioned above.
Alternatively use the "Who wants to be a millionaire?" Pressure and Density edition. Have pupils do this on the whiteboards as the go. Pupils write their winnings on the back of their whiteboard to see when they went out (should still try all the questions to keep interest up).
Main Body of Lesson
The experiment for the lesson is to observe the freezing point of Stearic acid. It starts off in the water bath as a liquid with the thermometer in the test tube. Pupils remove a test tube and then take the temperature every 30s for around 10 minutes. Before the experiment ask pupils how they can make their experiment as accurate as possible (eye level readings etc.). When finished pupils plot a graph of temperature against time marking the freezing point of the liquid (~70°C).
Plenary
Homework
Additional Information
Resources Required
Textbook References
Website References
Skills Addressed
Safety/Hazards
- Care with hot liquids, pupils should not sit down whilst performing this experiment. Inform pupils what to do in the event of a burn occurring. Pupils to place test tube in a beaker to transport it.
