Question

the passage below describes a process of scientific inquiry. select the part of the passage that describes developing a hypothesis. hint: to develop a hypothesis, you use logic and research to propose a possible explanation. a glass of water with ice cubes layla was learning about liquids in chemistry class. she wondered what happens when liquids freeze—do they get more or less dense? layla 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. layla 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, layla 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! layla 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:

La hipótesis es una suposición basada en lógica y conocimiento previo. En este caso, Layla usa su conocimiento de que el hielo flota (menos denso) para inferir que los líquidos se vuelven menos densos al congelarse. Esto es una proposición posible (hipótesis) que luego prueba con su experimento.

Answer:

Layla 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.