iRubric: Lab: Isotopes of candium rubric

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Lab: Isotopes of candium

Scientists experimentally determine the average atomic mass of candium, using its three "naturally occurring" isotopes. Groups present their measurements and calculations to explain to a community of scientists how to determine average atomic mass.

Rubric Code: Y25W79

By nicolearkin

Draft

Public Rubric

Subject: Chemistry

Type: Presentation

Grade Levels: 9-12

Isotopes of candium
	Fair 20 pts	Good 25 pts	Excellent 30 pts
Lab Report	Fair 1) Table is missing more than four values 2) Work is missing in four or more questions (in Analysis section) 3) Does not attempt all reflection answers	Good 1) Table is missing no more than three values 2) Work is missing in 1-3 answers (in Analysis section) 3) Attempt all reflection answers	Excellent 1) Table is completely filled in with values 2) All work is shown leading to answers (in Analysis section) 3) Attempt all reflection answers
Quality	Fair 1) More than four incorrect calculations 2) Reflection questions not attempted	Good 1) Most calculated values in table are correct 2) Maximum of 3-4 incorrect calculations 3) All reflection questions are attempted but may not be entirely correct	Excellent 1) All or almost all calculated values in the table are correct 2) Maximum of two incorrect calculations 3) Reflection questions address all parts of question and are explained thoroughly and accurately
Presentation	Fair 1) Group provides visual representation of original candium sample 2) Group provides average atomic mass calculation 3) Group discusses "if the answer makes sense", why or why not?	Good 1) Group provides visual representation of original candium sample 2) Group provides average atomic mass calculation 3) Group discusses "if the answer makes sense", why or why not?	Excellent 1) Group provides visual representation of original candium sample 2) Group provides average atomic mass calculation 3) Group discusses "if the answer makes sense", why or why not?