What science skills did you use during the SMASH Day activity? How do these science skills help us be better scientists?

We think make the bottom to be heavy, so that building won't fall, during the building, we think about Taipei 101,and another example is human's body, if the human's head is heavier than body, the human will fall, so if the human's body is heavier than head, the body will stand straight, not fall. So this two example is talk about the most heaviest part is in the bottom, so Mrs. Smith give us 5 piece of paper, we use for paper to build the bottom, and we make a shape like cylinder, and use the last piece of paper to build the top, so it can let the bottom can't moving and stand straight. So this skill( the heaviest put under the bottom first) can help the architect to build the house.