Heather's sister best illustrates the scientific attitude of Skepticism.
Skepticism scientific attitude can be defined as the way of not concluding on a claim you made before checking the validity of the claim.
Based on the scenario the sister is using Skepticism scientific attitude based on what heather dream because heather dream need valid scientific research that can back it up.
Therefore Heather's sister best illustrates the scientific attitude of Skepticism.
Learn more about Skepticism here:https://brainly.com/question/12560960
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