Why doesn't the glue in the bottle dry up?
82004
Glue can only dry if the water it contains is able to escape ionto the air as it evaporates. If you keep the klid on any water evaporationg can't get into the air, and so it returns to the glue again. With all the water that escapes coming back again the glue can't dry.\n\nGlue in a bottle sure can dry up if you leave the lid off and allow the evaporating water to escape.
662607
the liquid that is the adhesive requires the solvent to evaporate and allow it to cure. That is why it does not set in the tube while it is sealed
103211
because the pressue of the air in the bottle decreased
509685
superglue needs water to harden.  Moisture in the air will do.  But under the cap, especially of a new tube, there is no air and therefore no moisture.  Otherwise it will bond plastic.
1016382
GLUE IS MY HERO ESPECIALLY WHEN HAVING LITTLE COUSINS VISITING AND A HYPER ACTIVE DOG!! LOL\nTRY GLUE AND LOOK UP SOME GOOGLE SEARCHES ON HOW TO FIX IT. :)
120633
I've glued many many puzzles over the years and have them hanging on my walls.  I have always started at the top with a thin coat of glue spreading it as far as I can before getting more glue.  After coating the entire thing, let it dry for a few hours and do it again.  I also turn it over (after it dries of course) and put 2 layers on the backside for extra protection.  You can put as many layers on as you think you might need, but 2 on each side has work for me.  Don't worry, it dries clear.
464375
You dont drink enough liquids,so it is semi dry and it sticks to your hiney.
760981
Hmmmm...interesting...I didn't think you could really do that experiment WITHOUT making a mess! :)  (And isn't mess-making, next to bang-making, one of the main attractions of chemistry?)  I guess you could point the bottle away from you, at an angle, pop the Mentos into it with your fingers, then pull your hand away really quickly.
1070880
Probably some of the soap vaporized and coated the outside of the water bottle. The water shouldn't be used regardless of what happened. A sealed plastic bottle would not allow soap in, and even if this is not the reason and there is some form of contamination, the soap not being responsible will not decontaminate it.
19625
oxygen? most glue that i am aware of requires oxygen to catalyze the "gluing" process. glue goes bad and solidifies in the bottle if the cap is left open.
164834
have you tried taking some air out of it.\n\nTake air out and run it in your clothes dryer on fluff for a few hours.
700891
Well.......here goes. This experiment relies on the solvent solution being absorbed into the paper, and climbing upwards. This then allows the separation of the test material / substance, which follows the solvent solution. Most solvents will quickly evaporate when introduced to the air, so for more accurate results, and an overall truer picture, the container should be sealed.
38011
It should crumple up when the water cools down. This is because the air trapped in the bottle undergoes contraction upon cooling, and in the absene of extra gas filling up the space left behind, the walls of the bottles are forced inwards, thus deforming them.
199577
ok, guys.  both v_dawg and quicksilver are right.  when water makes a phase transition from liquid to solid (freezing) it expands in volume; that's why bottles filled with liquid will crack in the freezer.\n\non the other hand, if you leave it sitting there for a while, there will be a slow phase transition from solid to gas (sublimation) and over weeks-months the ice cubes will noticeably shrink in size.
409824
When what is mixed is not fully disolved into the liquid medium.  It usually settles.  A cenrifuge will not separate out the components that are not part of the solution.
685015
I would check at your local Wal-Mart in the cleaning section. Look for the solvents, i.e. Mineral Spirits, Turpentine, and my favorite Goof-Off. They make solvents for every type of adhesive, just check the labels in store. You may have to repaint if the solvent sets to long. Hope this helps!!
1052075
It sounds like you are desribing re-enforced craft tape.This is normally dispensed through a "Tape Shooter",which has a device to wet the tape as it is measured out.Don't lick it!It's nasty stuff.Use a damp sponge.The shiny side has the adhesive on it.It tends to curl rather quickly.