Using Models to Answer Questions About Systems (2 points each) Armando’s class was looking at images of rivers formed by flowing water.

Most of the rivers were wide and shallow, but one river was narrow and deep.

Armando’s class claims that this river is narrow and deep because:

Claim 1- the hill that the water flowed down was very steep

Claim 2- the sand grains that the water flowed through were very small.

Armando designed the model below to try to answer the question: Why is this river so narrow and deep?

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Question 2
1a. What features of this model will help Armando answer the question?