iRubric: Density Bottle rubric

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Density Bottle

Students build a density bottle and describe the density of the objects and liquids they decide to use.

Rubric Code: L9938B

By AAnderson10

Ready to use

Public Rubric

Subject: Science

Type: Project

Grade Levels: 6-8

Density Bottle
	Excellent 4 pts	Good 3 pts	Fair 2 pts	Poor 1 pts
Number of Layers	Excellent Student has 5 or more than 5 separate liquid layers.	Good Student has 4 separate liquid layers.	Fair Student has 3 separate liquid layers.	Poor Student has less than 3 separate liquid layers.
Number of Solid Objects	Excellent Student has floated more than one object at each layer of the bottle.	Good Student has floated at least one object at each layer of the bottle.	Fair Student did not float an object on one level of the bottle.	Poor Student did not float a solid object on more than one level of the bottle.
Diagram	Excellent The diagram is neatly completed and labeled with the correct labels.	Good The diagram is neatly done and labeled but not in color.	Fair The diagram is not neatly completed.	Poor The diagram lacks labels.
Summary	Excellent The summary is neatly written and addresses each item in the bottle and compares each one to another item that was included.	Good The summary is neatly written and addresses each item in the bottle and compares several of the objects to each other.	Fair The summary is neatly written and addresses each item in the bottle.	Poor The summary is not neatly written or does not demonstrate understanding of the scientific concepts.
Reasoning	Excellent Student includes clear understanding of the reasoning behind scientific concepts of density and buoyancy.	Good Student includes some understanding of the scientific concepts behind buoyancy.	Fair Student is starting to make a connection to buoyancy and density.	Poor Student does not make any connection between buoyancy and density.
Completion	Excellent Complete and on time.	Good Complete but one day late.	Fair Complete but more than one day late.	Poor More than one day late and/or incomplete.