Question

the passage below describes a process of scientific inquiry. select the part of the passage that describes identifying a question. greg was playing tennis with a friend. he noticed that while their rackets looked similar and weighed about the same amount, the strings were different. gregs racket strings were nylon while his friends were polyester. he wondered how the strings material affected how far it could propel a ball. since they have similar weights, greg assumed that the materials would apply the same force to the ball and send it the same distance. to test this, greg obtained 20 tennis balls. from the edge of the tennis court, he hit the first 10 balls using his nylon - stringed racket. he tried to hit each ball in the same direction and with the same force. his friend marked where each ball landed and measured the distance traveled. greg then repeated the procedure, hitting the remaining balls with his friends polyester - stringed racket. next, he calculated the average distance for each group. he found that the tennis balls hit with nylon strings traveled farther than those hit with polyester strings. greg reasoned that nylon must be more elastic than polyester, which causes the ball to travel a greater distance.

Explanation:

The part where Greg wonders "how the strings' material affected how far it could propel a ball" is the identification of a question in the scientific - inquiry process.

Answer:

He wondered how the strings' material affected how far it could propel a ball.