Drinking liquid through a straw uses the invisible pressure of the atmosphere to move a column of liquid. The air all around us is under pressure, from the rest of the atmosphere above it pushing down. (This is about 15 pounds per square inch at sea level.) You are reducing the pressure at the top of the straw*. The air pushing down on the surface of the liquid will force the liquid up the straw. So you are technically not "pulling" the liquid, it is being "pushed" by the air.
*When you suck on a straw, the diaphragm under your lungs drops down, reducing the pressure in your lungs. This reduces the pressure in your mouth and likewise at the top of the straw.
Air Pressure Experiment
You can show that the air has pressure by inhaling at the top of an empty plastic bottle (a two-liter soft drink bottle is perfect for this). The sides of the bottle will cave in as you remove air from the bottle.
(see related question)
Yes, plastic drinking straws will float in water.
Straws don't really float they will sink because they will fill up with water and sink.
yes
To make an egg drop with straws cut six straws into quarters. Lay each straw side by side, and tape them together. Repeat the steps for the side portions. Attach five draws to each side, and five more on top to create a roof.
You get more water in 1 straw then you get out of 2 straw because when you have 2 straws you just get more air then water.
wouldnt make them if they diddnt
No, the word straws is not an adverb.The word straws is a noun.
cut the straws in half and glue them side by side and make a tiny box in which the egg fits and for the bottom part, take a lot of straws and cut them so that you can weave them together-it'll work, trust me
A Nerd Rope or sour punch straws work well..
they both suck things up.
1/26
12 straws
I need 100 straws.
In order to make three squares the same size with four long straws and four short straws make a ladder with the straws. Place the long straws at the side the short ones are the rungs.
how to make a table with straws
Straws in the Wind was created in 1924.
yes straws do make you fart