Optional introduction of the analogy
Mum vs. baby |
Mum or baby throw without "resistance"The basic concepts of reaction rates can be introduced without any knowlegde of chemical equilibrium.
in the morning - in the afternoon |
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Worksheet 1 |
Reaction rate - what is this?An analogy can be used for introduction |
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Worksheet 2 |
Measuring reaction ratesFrom nursery to laboratory |
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Experiment
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Magnesium ribbon (ca. 2 cm) reacts with 3 ml Salzsäure (c = 1 mol/l)Video time lapse |
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Worksheet 3 |
Reaction rates - ΔV and ΔcFrom the change in gas volume to the change in concentration |
keywords
analogy, responsiveness, rate of reaction, kinetics, velocity, speed of reaktion, experiments with syringes, macroscopic, submicroscopic or particulate and mathematical-symbolic levels of representation, ball fight, competition in the nursery, children´s room, mama vs. baby
All materials by Gregor von Borstel translated by Stefanie Schreiner & Sophie Busch for the free (thanks!).
This work is licensed under version 4.0 of the Creative Commons CC-BY-SA license.