This teacher did this for a preschool lesson, but it can be adapted for older kids like my fifth graders. They could drop or open the balloons and observe what happens to the solid liquid and gas inside it. This would help identify the properties of solids, liquids and gases.
Intra-aortic balloon pump counterpulsation is frequently used as therapy for patients with refractory left ventricular heart failure or for other indications. Benefits of IABP therapy include increased cardiac output, coronary blood flow, and systemic perfusion pressure and decreased afterload and myocardial oxygen demands.