Answer:
If the Lego building is shaken side to side on a plank of wood, then it will result in the most destruction
Explanation:
From the scenario above, the proper hypothesis will be, if the Lego building is shaken side to side on a plank of wood, then it will result in the most destruction. The independent variable will be shaking duration(30, 60 and 90 minutes) while the dependent variable is the level of damage to the lego building.