I actually brought the subject up with my mother when I was a teenager. She had no idea (back then it was not even thought of AT ALL) that there was a problem. She knew I would never try anything (and I did not), but I made here aware at how easy it was to get drugs if I wanted. One of my friend’s brother’s room always smelled like pot (so my friend told me – I was never in his room and I have no idea what pot smells like); his friend used to bring hash brownies to her house. You can ask almost any teenager to go on a mission to get some drugs and they will have very little trouble finding a person who can get some for them.
This was ten years ago, and I am sure the problem is even more rampant now!
Honestly, I have no idea all the different drug names and paraphonelia. I know crack is a white powder. I know marijuana is smoked. But I wouldnt recognize it! You dont have to detail what illicit drugs looks like, smell like etc to warn them of the dangers.