Engineering Project 01 - Water Rocket Design Challenge - Bill Young - TeachersPayTeachers.com - 0 views
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valerie taylor on 09 Dec 12"As students are working through their various build sessions, we pause ocasionally to talk about the variables they are changing (independent), the expected outcome (dependent variable), and the records and/or graphs they are keeping on the flight times of their rocket (data collection and repeatable expeirmentation)."