Record observations over the next few minutes. Repeat but sprinkle salt on top of the ice along the path of the wire. Predict the effect. Repeat by changing variables such as the amount of the weight and the thickness of the wire. Make sure that all holes are the same size.
Shape corks so that they fit in the holes.
Fill the can with water. Predict what will happen when the corks are removed. Remove all corks at the same time. Describe the shape of the flow from each hole. Predict whether the shape and distance produced by the flow from each hole will vary from the original trial if that is the only hole open.