Hi my name is Bruno, I'm 19, I'm currently finishing my 12nd grade on arts. I'm annoyed because no one I know can properly discuss the Mpemba effect with me. So, I'll go as fast as I can on this. The scenario. We have a cup of water lets say for example at 80 degrees Celsius . We have another cup of water lets say for example at 20 degrees Celsius. And then we have a for example freezer, with a room temperature of let's say -40 degrees Celsius. You put both cups in the freezer at the same time and done voila, the cup that was at 80 degrees Celsius freezes faster than the one that was at 20 degrees Celsius. Now why? Nobody knowns. What I think? Kinetic energy. The water has different stages , and those stages have different molecular behavor and kinetic energy. Now at 0 or under degrees there is no kinetic energy, there are only crystals, over 0 degrees and below 100 the molecules are stable altough they start moving a bit more as the temperature rises, over 100 they just go ballistics nearly breaking their molecular links So we have the cup with water at 80 degrees, it comes in contact with a colder environment and they react, causing a temperature shock, which creates more kinetic energy, causing the 80 degree water molecules to go nuts and almost break their links, (even making some of the water to go from liquid to gas) thus making it easier to cool than the 20 degrees celsius that goes down gradualy because the molecules are stable. I tought of this theory based on behaviour I saw on video of a vulcano. Where the ash cloud coming from the vent reacted with the cold air creating a mini thunderstorm. I have no more patience to keep writing xD I hope you read this and take a quick look, I already think I'm wrong since, I dunno if this theory is actually possible in a such small scale . See you. Hugs and good night.