Answer:
The mocking bird could symbolize someone that is innocent and does no harm like Tom Robinson.
Explanation:
4 and 7 reading it from top to bottom
Todd is reluctant to join the Dead Poets' Society because he doesn't like reading aloud. He doesn't feel comfortable doing that which is why he is hesitant to join the club. However, Neil helps him by telling him he should just come and join them, and he doesn't have to read until he is ready to do so.
I believe the dependent variable in this experiment is the time for salt to dissolve since it <u>depends</u> on the speed of stirring (independent variable).
Therefore, the answer is:
Time for salt to dissolve
Hope this helps! :D