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iRubric: Report to Lead Forensic Chemist rubric

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Report to Lead Forensic Chemist Students write a report with a claim, evidence, and reasoning, answering the question, "Is the red stuff found in the faucet water the same substance as the pipe or the contaminant, or a different substance?" Assessment for the Amplify Science curriculum covering NGSS standard MS-PS1-1 Develop models to describe the atomic composition of simple molecules and extended structures. Rubric Code: HX4W999 By richbowden Ready to use Public Rubric Subject: Chemistry Type: Assessment Grade Levels: 6-8

MS-PS1-1
	No Evidence 0 pts	Not Proficient 1 pts	Nearly Proficient 2 pts	Proficient 3 pts	Highly Proficient 4 pts
Claim	No Evidence No answer.	Not Proficient Answer is incorrect.	Nearly Proficient Answer is ambiguous, not clearly defined.	Proficient Answers the question correctly, the red stuff is a different substance than the pipe or contaminant.	Highly Proficient Answers the question correctly, the red stuff is a different substance than the pipe or contaminant. Makes the claim part of an introductory paragraph telling where the evidence was from and or why the report is being written.
Evidence	No Evidence No evidence.	Not Proficient Evidence contradicts claim.	Nearly Proficient Omits some evidence, or evidence does not fully support claim.	Proficient All the evidence is included; all the properties of each substance (color, odor, and state at room temp.); all the atom types of each substance (Fe, O/N/Na, and Fe/O).	Highly Proficient All the evidence is included; all the properties of each substance (color, odor, and state at room temp.); all the atom types of each substance (Fe, O/N/Na, and Fe/O). The evidence is well organized either by type of substance or by type of evidence (properties and simplest unit). Explicitly states that having some similar atoms is not enough to call two substances the same substance, that they must have the same exact type and number of atoms in the simplest unit.
Reasoning	No Evidence No reasoning.	Not Proficient Reasoning does not connect the evidence to the claim.	Nearly Proficient Reasoning partially connect claim to evidence. One of the scientific principles is omitted.	Proficient Scientific principles are stated such as "Two things are the same substance if all of their properties are the same." and "When two things have different simplest units, they are different substances."	Highly Proficient Scientific principles are stated such as "Two things are the same substance if all of their properties are the same." and "When two things have different simplest units, they are different substances." Shows a clear connection between the evidence and the claim. Explains why the structure of different simplest units gives different properties.