1. The problem statement, all variables and given/known data You open the plastic bottle lid to take a drink,and notice fluid flowing from a small hole in the bottom of the bottle. You put the lid back on and the flow stops. Explain why the flow did not start until the lid was off. Explain why the flow stopped when the lid was put back on. 2. Relevant equations None 3. The attempt at a solution I thought that this has something to do with the pressure and the continuity of flow because liquids are non compressible but it's still not making sense to me. Could this be something about the Bernoulli effect?