K well he's smoking weed obviously if he has a keef scrapper, but, idk what that is, maybe a start for a seed to grown outside but he needs a light on it to grow
Look up "mushroom grow cakes" I have little doubt, its a poorly done at that tho. Its vermiculite to hold the moisture and coffee for nitrogen (will do little good not ground up but it'll still help) and I'm sure there's flour and a few other things (spores) in there as well.
Ah him what that little black thing beside the quarter is lol. If you want to know then tell him to piss in a cup. If you're not his parent then fuck off and get out of his or her room
So that little plastic spade thing by the quarters... That's for scooping kief from the bottom of a grinder