Enigma Box

In another boring ordinary day of school Mrs. Casey decides to do another science experiment. This experiment seemed kind of stupid and boring but I found it to be an ok experiment this time. It involved a container, something to make holes, a straw, and liquid. This experiment was refreshment on the scientific abilities we learned and studied in class.
This experiment we did together in class, it was called an Enigma Box. This box well at one point it was a milk carton, anyways it was a hollow box with a tube coming out it's back. This box had two holes on the side. One hole was small and, the other one was a fair size I guess. When this box was all the way full with liquid or like Mrs. Casey likes to call it Blu Kelly's urine it leaks out the tube out the back at a steady pace until the liquid is all gone. I thought this could be used as a way to tell time because of it's steady pace, but like usually I thought wrong.
At first I didn't know how the Enigma Box worked. So like the way I am (lazy) I believed Mrs. Casey when she said it was magic. But she made us guess what really makes the Enigma Box work though. So I examined the box carefully and I observed it the best of my ability. So I came up with a thought that the Enigma Box was a hollow cube with a small hose though it so that when it gets to full it leaks it all out at a steady pace.
Like usual Mrs. Casey told us how the Enigma Box really works. She told us that she tore open the top of the box and imp laced a looped straw. Then she poked two holes in the box so that air could get through and another hole for the tube to go through the back. She did this so when she filled the box all the way to its maximum captivity the liquid will flow out of the box from the straw at a steady pace. Also those two holes that she made, air went into the box and it helped push the liquid through the straw and with gravity it made all the liquid flow out. Ha-ha I guess it is magic.