Aluminium foil or plastic wrap insulate the heat of the wrapped up material.
aluminum foil i think
aluminum foil is better at blocking temperature from getting out than plastic wrap. the atoms in the element aluminum are bigger and have more neutrons/electrons and protons than the elements in plastic wrap.
aluminum foil
aluminum foil
aluminum foil it seals the cold in alot more than plastic wrap.ans2, RIGHT answer, but reason not quite correct. The shiny aluminum will reflect all heat.And since your package is cold, the only ways it can heat up are conduction, radiation, and convection. Of which three, Aluminum foil will stop radiation and largely stop convection.
aluminum foil
If the object is warm to begin with, aluminium foil, as it is a metal and so will conduct the heat out into the environment. (Metals feel cold because they are good conductors and so conduct the heat out of you when you touch them). If the object is cold to begin with, plastic wrap, as it is a poor donductor and will not allow heat from the environment to enter the object easily. (Plastics feel warm because they do not conduct the heat away when you touch them).
Plastic!!!!!!!!!! Aluminum recycles, but most plastics do not.
Me personally I would say that plastic wrap keeps things colder because it keeps things better contained than aluminum foil. See aluminum foil rips easily than plastic wrap. So I would say plastic wrap.
aluminunm foil
The rate at which water freezes depends on the thermal conductivity of the container. Plastic is generally not very thermally conductive, whereas aluminum foil is more thermally conductive. Thus, as long as the foil is not very much thinner than the plastic, the water will freeze faster in the foil.
ice will melt faster wrapped in aluminum foil and plastic wrap when you put it outside