Agroup of scientists build a net along a section of the river to separate a group of foreign fish species from the rest of the river. they wish to determine whether their experiment is a closed system by placing a colored dye in the fish's habitat and observing whether the dye escapes from the enclosure. could this experiment determine whether the system is closed or not? justify your answer based on the definition of a closed system.

Use the drop-down menus to match each part of the scenario to the correct scientific practice. akira records the speed of a reaction without a catalyst and then with a catalyst. akira creates a reaction without a catalyst and repeats the reaction with a catalyst. akira turns in a written lab report to his science teacher. akira wonders, "will adding a catalyst speed up this chemical reaction? " akira writes in his notes that adding a catalyst sped up the chemical reaction because the catalyst lowers the activation energy needed to get the reaction started.