iRubric: Water Bottle Rocket rubric

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Water Bottle Rocket Water Bottle Rocket Assessment of water bottle rocket or rocket car. Rubric Code: XXB294X By Rossyjoy Ready to use Public Rubric Subject: Physics Type: Project Grade Levels: 6-8

Water Bottle Rocket Assessment of Bottle Rocket, as built
	Poor 1 pts	Fair 2 pts	Good 3 pts
Center of mass/ Pressure 3 pts Center of mass below center of pressure	Poor Center of mass above center of pressure	Fair Center of mass at center of pressure	Good Center of mass below center of pressure.
Stable? 3 pts Rocket is stable and moves straight and true.	Poor Rocket does not fly true and is unstable.	Fair Rocket almost flys true during stability test	Good Rocket flys true during stability test
Nose cone 3 pts Nose cone secure and aerodynamic	Poor Nose cone absent or not secure and aerodynamic	Fair Nose cone somewhat secure and aerodynamic	Good Nose cone secure and aerodynamic
Tail fins 3 pts At least three sturdy tail fins of appropriate size and placement.	Poor Tail fins absent or not sturdy and/or not of appropriate size and placement.	Fair Tail fins somewhat sturdy and of appropriate size and placement.	Good Tail fins sturdy and of appropriate size and placement.
Building behavior 3 pts Students behavior while building the rocket.	Poor Did not stay on task. Group dynamics is lacking in positive leadership or work ethic.	Fair Had to be reminded to work and make efficient use of class time.	Good Worked hard with a positive attitude.