Tar is one of the poisons that smokers put into their lungs. And that's what is left in a smoker's lungs after smoking a cigarette. And, each cigarette puts more tar in the lungs, making it harder and harder for the lungs to work. So, let's add some tar to these lungs . You can print them out and color in some dark brown sticky stuff or add some glue, putty, or gloppy stuff colored dark brown.
Smokers also breathe in nicotine.
Nicotine is very poisonous. People use nicotine to kill weeds and other plants because it is such a powerful poison. Add some nicotine to your lungs. Color in some yellow poison spots on your printout. Keep your lungs healthy and don't smoke.