when it is placed in a container and it decreases moving uo . pressure due to the liquid increases with depth from the surface of the liquid
Suction.
Air pressure. If you suck, the air pressure of the surrounding air is greater than the pressure inside the straw.
The straw colored liquid is called the plasma.
Air pressure within the straw.
Gravity. When you place something on a liquid, and it is less dense than the liquid, gravity pulling down on the liquid forces the object to float.
Buoyancy.
Suction.
When you suck on a straw the pressure at the top of the straw becomes lower than the pressure at the bottom, which forces liquid up.
When you 'suck' on a straw, you reduce the air pressure inside it. This means the air pressure on the surface of the liquid outside the straw is greater - so it pushes down, which forces liquid up the straw into your mouth.
Air pressure. If you suck, the air pressure of the surrounding air is greater than the pressure inside the straw.
buoyancy
Adhesion produces the effect of capillary action when a straw is placed in liquid. Capillary action is liquid's ability to flow in narrow spaces without external forces like gravity.
A liquid's buoyancy is determined by its specific gravity (density).
The straw colored liquid is called the plasma.
Air pressure within the straw.
Gravity. When you place something on a liquid, and it is less dense than the liquid, gravity pulling down on the liquid forces the object to float.
Sabotaging a StrawPutting one or more pinholes in the straw, above the level of the liquid, will allow air to enter the straw at the top, and the liquid will not rise in the straw. To use this "sabotaged straw", merely switch ends (flip it over) so that the pinholes go under the liquid.