First, I would definitely discourage you from becoming a smoker just to do the experiment! Second, if you need a human in order to do the experiment, I would ask my parent if they know any adult smokers who might be willing to help with the experiment. Exactly how you set up your experiment would depend on what you intend or wish to study. For example, you might tell smokers you just wish to observe them smoking. Without telling them what you are observing, use a second hand on a watch or stop watch to time how long of an inhale and time between inhaling the smoke and exhaling the smoke. Your hypothesis might be something like, greater times of inhalation would expose the lungs to higher numbers of chemicals. You'd need to really think through what you want to show.
When you start to believe that you can't get addicted to it ! NO! that's wrong you cannot get addicted to cannabis, it has absolutely no addictive qualities, there have beenmany experiments and studies to back this up.
The plural possessive form of "experiments" is "experiments'".
The plural possessive is experiments'.
Make stuff for experiments, do experiments and analyse the results of experiments.
Secondhand smoking means the passive smoking and passive smoking is worse even than smoking cigarettes.
Which experiments?
experiments test the scientist theory
Most experiments conducted are medical experiments, but fluid mechanics experiments, various experiments involving weightlessness, and testing of new technologies are also conducted.
if people stop smoking then smoking can be changed
Smoking.
Experiments are done all over the world. The place that most experiments are done is in America.
Which two experiments?