4
QuizMultiple Choice

Evaluating Scientific Explanations — Unit test

Question 4 • Physical Science Sem 1 (2003310) BCPS 2026-27

Hunter is in lab. He clears a spot on his lab bench to start working. He also puts his lab coat and goggles on. He then identifies where all of the safety equipment is. He notices his station is next to the fume hood, which ventilates the chemicals stored there. The noise of the fume hood was bothersome, so Hunter turned it off.Which could be an error in his set-up?

Answer
A
He should not turn off the fume hood.
B
He should wait to put on his coat until after the directions are given.
C
He should wait to put on his goggles until after the directions are given.
D
He should not sit next to the fume hood.

Explanation

A fume hood ventilates hazardous chemical vapors, so it must remain on when chemicals are stored or used there. Turning it off can allow fumes to build up and expose people in the lab. Therefore, the possible setup error is turning off the fume hood.

AI-written and checked against the verified answer.

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