Your friend is trying to stop smoking and you suggest she try ...

[HCHenry]

Your friend is trying to stop smoking and you suggest she try using a nicotine patch. She resists your suggestion thinking the patch can't work.
 
  Talking with her, you realize she doesn't understand how nicotine could pass through her skin, which seems solid. What activity have we done already this summer could you do with her to help her understand? How would this activity help explain the probable mechanism by which the nicotine patch is working?

Question 2

What prompted early scientists to propose that the ray of the cathode ray tube was due to the cathode?
 
  A) The ray was present regardless of gas, or even without a gas.
  B) The ray was attracted to positively charge electric plates.
  C) The ray was not seen from the positively charged anode.
  D) The ray could be diverted by a magnetic field.
  E) The ray would change colors depending on which gas was used inside the tube.

[Anna]

Answer to Question 1

The peppermint balloon activity should help her understand that even things that seem like they are solid can have holes that, while too small to see, are large enough for sub-microscopic particles (in this case, the nicotine) to pass through.

Answer to Question 2

A

[HCHenry]

Wow, this really help

[nothere]

Gracias!