Water Rocket:
[Submit a question about this event.]

Description: Prior to the tournament, each team will use 2-liter soda/pop bottles to build one or more rockets propelled by air pressure and water. Rockets will be launched at the tournament and time aloft recorded.

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Check this web site often. All answers to questions will be posted here.
All questions MUST be submitted using the on-line form at:
http://www.macombso.org/elementary/faq/rules.php