Question

the passage below describes a process of scientific inquiry. select the part of the passage that describes revising the hypothesis. ellie pushed abby and abbys little brother, andy, on swings. ellie noticed that andy always swung back in less time than abby. ellie asked abby if she thought the weight on a swing was related to the time it took to return. to find out, abby stood back four feet and released a swing three times, once with a light weight attached to it, once with a medium weight, and once with a heavy weight. ellie measured how long it took the swing to go forward and back each time. they repeated the tests on ten swings. they decided that weight on a swing wasnt related to swinging time, since for each swing the time was similar with all three weights. then, ellie noticed that swings with shorter chains always swung back sooner. she thought that chain length would determine swinging time and that shortening a swings chains would shorten the time it took to swing back.

Explanation:

The initial hypothesis was about weight - swing time relation. After testing and finding no relation, Ellie formed a new hypothesis about chain length - swing time relation, which is the revision.

Answer:

Then, Ellie noticed that swings with shorter chains always swung back sooner. She thought that chain length would determine swinging time and that shortening a swing's chains would shorten the time it took to swing back.