after the groups did their part, eve had to check the participants’ breath. she had the volunteers blow bubbles into a solution of lead nitrate and water. when hydrogen sulfide is present, the lead nitrate turns black. control participants had bacteria in their mouths, and the water turned black. but the solution remained clear when the test volunteers from the three walnut groups blew bubbles into it. eve then swabbed the mouths of each volunteer. she grew the bacteria that had been present and counted them. she found that participants eating walnuts had fewer bacteria. eve confirmed her hypothesis that walnuts made fresher breath. she suspected that chemicals in african walnuts might be killing off the stinky germs. to prove that, she would have to conduct more tests.

based on the scenario, select the statement that identifies the analyzing data and drawing conclusions stage.

○ eve found that the group that did not use walnuts had more bacteria than those who did. she concluded that her hypothesis was correct.
○ eve had the volunteers blow bubbles into a solution of lead nitrate and water. when hydrogen sulfide is present, the lead nitrate turns black.
○ the group that used the walnut mouthwash had more bacteria than other groups
○ eve suspected that chemicals in african walnuts might be killing off the stinky germs. but to confirm that she would have to conduct more tests.

Question

after the groups did their part, eve had to check the participants’ breath. she had the volunteers blow bubbles into a solution of lead nitrate and water. when hydrogen sulfide is present, the lead nitrate turns black. control participants had bacteria in their mouths, and the water turned black. but the solution remained clear when the test volunteers from the three walnut groups blew bubbles into it. eve then swabbed the mouths of each volunteer. she grew the bacteria that had been present and counted them. she found that participants eating walnuts had fewer bacteria. eve confirmed her hypothesis that walnuts made fresher breath. she suspected that chemicals in african walnuts might be killing off the stinky germs. to prove that, she would have to conduct more tests.

based on the scenario, select the statement that identifies the analyzing data and drawing conclusions stage.

○ eve found that the group that did not use walnuts had more bacteria than those who did. she concluded that her hypothesis was correct.
○ eve had the volunteers blow bubbles into a solution of lead nitrate and water. when hydrogen sulfide is present, the lead nitrate turns black.
○ the group that used the walnut mouthwash had more bacteria than other groups
○ eve suspected that chemicals in african walnuts might be killing off the stinky germs. but to confirm that she would have to conduct more tests.

Accepted Answer

# Brief Explanations:
To identify the analyzing data and drawing conclusions stage, we look for a statement that involves examining collected data (like bacteria counts) and forming a conclusion about the hypothesis. The first option describes Eve finding a difference in bacteria counts (analyzing data) and concluding her hypothesis was correct (drawing conclusions). The second option is about conducting an experiment (data collection/experimental procedure), the third has an incorrect claim about bacteria counts, and the fourth is about future tests and a suspicion (not analyzing data or drawing conclusions yet).
# Answer:
A. Eve found that the group that did not use walnuts had more bacteria than those who did. She concluded that her hypothesis was correct.

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