What is the science behind drinking water with a straw?
A drinking straw is a useful tool that most people use without thinking. It seems second nature to just grab a straw and have a sip of a drink. It is a rather simple process, but the reason why it works is usually not immediately obvious.PressurePressure is a force that exerts on an area of an object. It usually has the effect of decreasing the volume of an object.SuctionSuction comes about when there is an area of low pressure and an area of higher pressure connected. The pressures attempt to equalize and any particles under higher pressure rush toward the lower pressure area.DiaphragmYou can use your diaphragm to suck in or expel air. This works by creating a lower pressure or higher pressure area inside you by decreasing or increasing volumes.StrawsStraws provide a conduit that is unbroken. If a straw has a hole that is above the level of the liquid it will not work. It won’t work because you will be sucking in the air instead of the liquid.
