Why doesnt glue stick inside the bottle?
I just noticed this while at school :)
Somethin about oxygen... And chemical reactions... And stuff...
This is because there is not enough air in the bottle for it to stick. However, if you leave the bottle open without putting the cap on, then chances are that it will get more stickier. Check out http://chemistry.about.com/od/polymers/f/Why-Does-Not-Glue-Stick-To-The-Inside-Of-The-Bottle.htm for details.
because it is inside the bottle, the glue is not exposed to air; if it's not exposed to air, the glue usually won't dry--glues will stick if it's dried.
Simply because it's covered, if you leave the cap off it will dry out.