Question

the passage below describes a process of scientific inquiry. select the part of the passage that describes testing the hypothesis. deb was a deejay who used a bubble machine at her events. she wanted to know how to make the bubbles last longer. she read in a book that bubbles burst because the liquid that makes up the bubbles evaporates. she knew that warm liquids evaporate faster than cold liquids. so, deb expected that the temperature of the bubble solution could affect how long the bubbles lasted, with colder bubbles lasting longer. deb heated six bottles of bubble solution to 110°f, kept six bottles at 75°f, and cooled six bottles to 40°f, and then she measured how long bubbles from each of the bottles lasted. because the bubbles from the colder solution lasted longer than bubbles from the other solutions, deb reasoned that temperature does affect bubble lifespan. for her next deejay event, she iced the bubble solution before she loaded it into the bubble machine.

Explanation:

Deb heated, kept at a constant, and cooled bubble - solution bottles and measured how long the bubbles lasted. This is the experimental part of scientific inquiry where she tests her hypothesis that temperature of the bubble solution affects bubble lifespan.

Answer:

Deb heated six bottles of bubble solution to 110°F, kept six bottles at 75°F, and cooled six bottles to 40°F, and then she measured how long bubbles from each of the bottles lasted.