Answer:
To correct her statement, Lisa should say that sound travels through the air as vibrations, not by the movement of particles from the teacher's mouth to the students' ears.
Explanation:
Lisa can correct her statement about how sound travels by explaining that sound is actually carried through the air by vibrations. When the teacher speaks, the vocal cords in their throat vibrate, creating sound waves. These waves travel through the air as a series of compressions and rarefactions, causing particles in the air to oscillate back and forth in the direction of the wave. As a result, the sound waves propagate through the air until they reach the ears of the students, where they are detected by the eardrums and interpreted by the brain as sound. Therefore, it's not the particles of air themselves that move from the teacher's mouth to the students' ears, but rather the energy of the sound waves that propagates through the air medium.