Question

the passage below describes a process of scientific inquiry. select the part of the passage that describes revising the hypothesis. hint: to revise the hypothesis, you use the results of the investigation to come up with a new explanation. emma was learning about liquids in chemistry class. she wondered what happens when liquids freeze—do they get more or less dense? emma already knew that ice floats to the top of water because ice is less dense, so she reasoned that liquids must get less dense when they freeze. emma filled two small cups with olive oil and two small cups with white vinegar. she put one cup of each liquid in the freezer and kept the other cups on the counter. the next morning, emma removed the cups from the freezer. she put a piece of the solid olive oil into the liquid olive oil and a piece of the solid vinegar into the liquid vinegar. to her surprise, both solids sank! emma realized that water must be unusual, and that most liquids must get denser when they freeze. when she told her teacher about her experiment, her teacher confirmed that most liquids do get more dense when they freeze.

Explanation:

Emma initially thought liquids get less dense when they freeze based on ice - water example. After her experiment with olive oil and vinegar where the solids sank, she realized her initial idea was wrong. When she told her teacher and got confirmation, she revised her hypothesis. The key part is "Emma realized that water must be unusual, and that most liquids must get denser when they freeze".

Answer:

Emma realized that water must be unusual, and that most liquids must get denser when they freeze.