III. Testing Count out your predicted number of pennies and carefully place your barge in the water tub. Make sure that the barge has NO contact with the walls of the tub or its base. Slowly begin placing your pennies. Remember to keep the barge balanced and the pennies symmetrical. Keep going until you feel that no more pennies can be safely added to the barge. If you have exceeded your predicted number, you may get additional pennies. Once you stop adding pennies, your barge must float for a minimum of 60 seconds. If the barge sinks on the 59th second, it is disqualified, the same as if it sank on any earlier second. After you have completed your timing, you may NOT add any additional pennies. Remove your barge from the water tub and set your pennies out to dry. IV. Conclusions |