Question

HELP!! Mrs. Stevens asked four of her students to research how running water affects the shape of a stream over time. To find the answer:
Morgan performed an internet search, read books in the school library, and looked at articles in scientific journals.

Casey built a model of a stream and performed controlled experiments.

Maria observed several different streams near her house for a few hours.

Jamal interviewed local scientists who routinely study stream flows and shapes.
Which student's research most likely produced the weakest scientific evidence?
Jamal
Casey
Maria <-
Morgan

Answer 1

I think it's Maria

Answer 2

I was right