Law of Action- Reaction

Last week, we did another experiment. It is about action reaction. It is an interaction between two objects that have made contact with each other. The experiment that we did is a marble action reaction. We have 4 marbles in all, and the 3 marbles are in a same line. The fourth marble is away. The fourth marble with do the reaction beacause it is the one that do to make a reaction. The reaction was performed when the fourth marble touch the other marble. When the reaction was performed, the it touches the other marbles that made the marbles move.