Each may be torn into pieces and re-assembled as desired. The time for construction is 20 minutes. Construction will cease immediately at the end of 20Jminutes. A tower shall be declared freestanding if it remains self-supporting for at least 10.0 seconds. Height is determined by measuring the perpendicular distance from the floor to the highest point of the tower.
Wind velocity is the concern of the team.
All other scores will be proportional. Each team will be given one piece of 15 cm X 10 cm aluminum foil. The object of the event is to build a barge from the aluminum foil that will float the largest number of pennies. Each team may have only one entry. No drying of pennies will be permitted.