Learning objectives
- Identify which substances have large and small surface areas
- Suggest how to increase surface area of a reaction
- Calculate surface area of different shapes
- Explain how surface area affects the rate of reaction
After completing retrevial practice, start with a demo and discuss how you could make the chemical reaction go faster. Demo could be iron wool in bunsen burner and then iron fillings as its exciting!
Discussion of surface area and some questions
Practical involving rhubarb to investigate and check understanding
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