Summary: A group of six balloons are tied together to form an octahedron. The balloons are popped one at a time to form the bipyrimidal and the tetrahedral shapes.
Materials:
Six 9-12 inch balloons of different colors
Push pin in a cork stopper
Hints: Oddly, balloon phobias are common. You may want to warn your students that you’ll be popping the balloons. Also, the demo works better when the balloons are not over inflated.
Procedure:
Blow up the balloons to mid size and tie them together to form an octahedral shape. Pop the balloons to get the various shapes.
To schedule a demonstration, please send an email to the demonstration lab.
Contact:
Eric Camp
Lecture Demonstration Technician
Bagley Hall 171
(206) 543-1606