Can Air Crush a Soda Can?
In this activity, water is boiled inside a can so that the volume of the air and water vapor expands to fill the inside of the can. The can is then quickly inverted in a tub of cold water and the cooling of the inside air results in an air pressure differential between the inside and outside of the can. As a result, the can is crushed. This is a dramatic example of relational causality. Making Connections Using Relational Causality This activity is designed to help students transfer what they have learned about relational causality to a new set of questions. The sheet asks each student to choose two questions that interest him or her and to map them out as students have mapped out the relational causality for the activities in the lessons (the three flasks, balloon and flask, lift, and so on). The activity sheet is self-explanatory (once students have mapped the instances in the activities). Mapping Relational Causality This activity is designed to help students map out the variables i
