Activity 5 Hypothesise about the best way to prevent rust On a road trip through South Africa, you stop to help with several projects. 1. A windmill on a sheep farm in the Karoo is rusting. Suggest a method to prevent it from rusting any further. 2. A school building in Natal needs a roof. Suggest a suitable material for the new roof. 3. A container ship arrives in the Port of Ngqura. The captain needs to protect the hull from rusting during long voyages at sea. Suggest a method of preventing the hull of the container ship from rusting. 4. At a school in Johannesburg, a class is learning about rust prevention. The learners have collected nails, jars and paint to conduct an investigation. Suggest a method that the learners can use to investigate how to prevent rusting. Write a hypothesis for the investigation and predict the result of the experiment .
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