Relate Tuesday's Activity 37 to today's lesson. Write a paragraph using the terms from today (heterogenous mixture, solution, solute, dissolve, solvent, saturated, unsaturated, dilute, concentrated) and explain how they relate to yesterday's activity. For each term explain how we were able to see them or examples of them in the lab activity from Tuesday.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

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