Fill bottles to about 3/4 way to top. You must leave room for expansion.
Tighten cap and place in freezer at least 6 hours before you need them.
I think its a plastic.
Because plastic can't be attracted to a magnet. Only metal can be.
Because a plastic bottle can contaminate the sample; and a glass bottle is fragile.
The plastic drink bottle feels warmer than a metal can because the metal can has a higher thermal conductivity compared to the plastic drink bottle. Thermal conductivity is the property of a substance to conduct heat, and the metal can, being made of metal, has a much higher ability to conduct heat compared with the plastic bottle. This means that when you touch the metal can, it draws out your own body heat faster than than when you touch the plastic bottle, so the can feels cooler.
It depends on whether it is a plastic cap - as in a bottle of soft drink - or a metal cap - as in a beer bottle.
Plastics make up the majority of bottle caps. They might also be created from metal. Based on its intended use and the type of bottle or container, the material used to make bottle caps is selected.
Because metal is a better conduct of thermal energy than plastic 😃
it would melt faster in a glass container faster.
A Bottle is a narrow-necked hollow vessel, a plastic or glass recipient that can contain a sertain amount of liquids. Bottles are containers that are typically made of hard substances like plastic or glass. Occasionally bottles will be made out of metal.
Why plastic is more dangerous... than what? Your question isn't complete, however, I can still give you a reason why plastic is more dangerous than metal. (In water bottle form.) Plastic is more dangerous than metal in water bottle form because when plastic heats up (like say it's left in a hot car for a long time) it releases a chemical called Bisphenol A (BPA) into the water or whatever is in your water bottle. This is potentially harmful. Metal does not release this kind of chemical. I hope I helped!! :)
Fixed volume In terms of gases,is that a fixed volume would mean that the pressure, temperature and the number of molecules can change but the volume, or area in which the molecules lie, must remain constant. Think of a metal drinking bottle versus a plastic bottle. You cannot squirt water from a metal bottle because the shape is fixed, therefore the volume. You can squirt water from a plastic bottle because you can change the shape and reduce the volume.
No there metal not plastic the top has plastic