Question

the passage below describes a process of scientific inquiry. select the part of the passage that describes developing a hypothesis.
mouthwash
alan brushes his teeth twice per day. he wondered if adding mouthwash to his routine would improve his dental hygiene. he predicted that using mouthwash daily would reduce the amount of bacteria in his mouth. alan brushed his teeth and then immediately swabbed his mouth. he then used mouthwash and collected a second swab. he cultured the bacteria from each swab in a petri dish. he found that the swab he collected after using mouthwash grew noticeably less bacteria. alan concluded that using mouthwash reduced the amount of bacteria in his mouth.

Explanation:

A hypothesis is a proposed explanation made on the basis of limited evidence as a starting - point for further investigation. In the passage, Alan's prediction that using mouthwash daily would reduce the amount of bacteria in his mouth is a proposed explanation for the potential improvement in dental hygiene.

Answer:

He predicted that using mouthwash daily would reduce the amount of bacteria in his mouth.