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When you remove the air from inside the glass you are creating a difference in pressure compared to the air on the outside of the glass. This means that the inside of the glass "wants" something to fill it up, as your mouth is there it will pull your lips into the glass. The same effect can be seen if you have a half empty glass and try to pull it put of a bowl of water. You will see that the glass will pull some of the water out with it.
The scientific principle behind this can be explain by Boyle's Law which states that "at a constant temperature, the volume of a given mass of gas varies inversely with pressure"
So if you reduce the pressure then you will reduce the amount of space the gas needs therefore something will need to fill that space, i.e. your mouth
What else can I help you with?
Example of heat insulator?
There are many but a few are: 1. Vacumm (Best) (Vacumm is actually nothing at all! All the air is sucked out.) 2. Styrofoam 3. Plastic 4. Wood 5. Glass 6. Rubber 7. The material in your clothes
What do you call an opening to allow air in or out?
A vent allows for ventilation of air (allowing air in or out).
Air enters your respiratory system through?
Air enters the the respiratory tract through either the nose or mouth.
Why does dew produced when ice is in a glass?
Because the surface temperature of the glass gets colder than the dewpoint temperature of the air. Therefore the relative humidity goes over 100% on the glass causing water vapor in the air to condense into liquid water on the glass.
What are some transparent objects?
Some transparent objects are water, air, and clear glass.
Why empty get stuck to mouth when it is sucked?
Empty containers can get stuck to the mouth when sucked due to the creation of a vacuum within the container, causing external air pressure to push the container against the mouth. The negative pressure inside the container keeps it firmly in place until the seal is broken.
Where fresh air entres the body?
Air is sucked into the lungs through the nostrils of the nose or mouth.
Is it normal for a Bordernese dog to put her nose in the air and lick the air?
Either it has something stuck in its mouth, has to sneeze, or has something stuck in its nose.
What is the function of bell jar?
A bell jar is a glass dome that can house delicate objects or serve as a vacuum if the air is sucked out.
When you suck a straw your mouth gets bigger what happens to the air pressure in your mouth?
When you suck on a straw, the air pressure in your mouth decreases, creating a vacuum that allows the liquid to be drawn up into the straw and into your mouth. This decrease in air pressure is what causes the liquid to move from the higher pressure environment in the glass to the lower pressure environment in your mouth.
How do you use the word sucked in a sentence?
The tornado sucked the car right up into the air. The vortex below those rapids sucked my canoe right out from under me!
What has nothing in it not even air?
A vacuum is a space in which all air has been sucked out.
What will happen to the bottle if air is being sucked out?
It will implode.
What you should do if youre stuck to an ice?
Cover your mouth with you hands and blow warm air into it for a while and you will be able to let the metal let you tongue go.
What would happen to the air pressure when the air is sucked out?
When air is sucked out of a closed container, the air pressure inside the container decreases. This occurs because there are fewer air molecules colliding with the walls of the container, resulting in a lower pressure.
Where does the air that's sucked into the cartburater of a lawnmower go?
Out the muffler.
How do differences in air pressure cause a liquid to flow through the straw and into your mouth?
The pressure inside your mouth is less than the atmosperehic pressure above the glass. The water is pushed through the straw by this difference in pressure.
