Now, take turns testing the obstructed straw. Insert the clay-plugged end into the water filled container. Keep the patch above the water level. Critical Analysis of Your Model Consider the following questions and discuss them based on the above activity. You've seen the trick before.
Flowers seem to materialize out of thin air.
In this segment, Alan commented that loading the metal seal reminded him of the magic flower trick he performed as a child. If so, draw a blueprint for a both the magic wand and the appearing flowers. The blueprint should illustrate and explain how a bouquet can appear almost instantly from the tip of the wand. In this show, you observed an invention that is used to close a small by-pass opening in a human vessel. His device used a spring-loaded seal that opened and attached to all sides of the opening, almost completely filling the hole.