1. interpret data- based on the data, describe what alicia did. 2. draw conclusions- what conclusions can you draw? what does stirring do in terms of heat transfer?

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Uncle grandma

Answer(a)   the matererials that are in contact, the two materials and the nature of their surfaces/// (b)/// the force pushing the two surfaces together, pushing the surfaces together causes the more of the asperities to come together and increases the surface area in contact with each other