10. The Juul product is made to have a smooth feel, leading the user to think the nicotine level is low and making it popular among teens. However, it was found that the Juul liquids contained more than five
times the nicotine as other similar brands. The Juul liquid contained a lower percentage of the harsher, but
better-absorbing, base form of nicotine, but a higher amount of total nicotine. Propose a scientific
experiment (assuming non-human test subjects) that could be done to determine how much more
nicotine is absorbed when in base form as opposed to acid form.
The experiment should include an independent variable (something like the amount or ratio of acid and base
forms); a dependent variable (something related to the absorption in the lungs); controiled variables (all
other conditions: type of heating element, dispenser, length of puff, etc.) and a plan to collect data.