Ice ball experiment

On Wednesday we done an experiment with ice balls but the first step was to make ice balls so my science teacher made ice balls by putting water in a balloon and second step is to wait 2 or 1 day for it to freeez then it is ready. Done we have ice balls now we are going to experiment with a ice ball so we went into pears and done some experiment. The first experiment was putting food coloring on the ice ball. When we put food coloring on the ice ball it changed color then me and tau'ataina done the next experiment to the ice ball and that was putting salt on it. Then i touched it and it was hard and the ice ball was like a crustal. Then we put soda powder on it but it done nothing all of science class went outside and we throwed  it as high or as far.