Chemistry
Name:_________________________
Rubric for Periodicity Lab
Lab Report Rubric: Each bullet is worth 2 points. Each section must be included AND correct
to receive full credit.
□ Format: followed directions
□ Purpose
□ Hypothesis and explanation for prediction
□ Procedure summarized, not step by step
□ Procedure written in past tense passive voice in paragraph form
□ Data tables included (descriptive observations)
□ Analysis: What pattern can you describe for the precipitation of the sulfate salts, oxalate
salts, carbonate salts?
□ Analysis: Which combinations of chemicals are the most soluble? How do you know?
□ Analysis: Which of the combinations are the least soluble? How do you know?
□ Analysis: Are the reactivity tendencies observed with the sulfate and Group 2 ions
supported by the reactions with the oxalate and carbonate ions? Explain.
□ Analysis: Write a general statement to describe the reactivity of Group 2 ions.
□ Analysis: Did your results of this experiment support your hypothesis about the properties
of Group 2 metals? Explain.
□ Analysis: Predict what would happen if Ra+2 ions were used in the three tests. Explain.
□ Analysis: Predict what would happen if Be+2 ions were used in the three tests. Explain.
□ Analysis: How could this experiment be extended in order to place each element within a
family in the periodic table? What types of reaction would be most useful in characterizing
the elements? Which family of elements would be the hardest to characterize? Why?
□ Conclusion: Summary made (what were your results?)
□ Conclusion: Significance, relate to what is learned in class
□ Conclusion: errors discussed
□ Conclusion: improvements suggested
□ Conclusion: did you achieve goal/purpose of lab? How?
Total: ______________ out of 40
Chemistry
Name:_________________________
Rubric for Periodicity Lab
Lab Report Rubric: Each bullet is worth 2 points. Each section must be included AND correct
to receive full credit.
□ Format: followed directions
□ Purpose
□ Hypothesis and explanation for prediction
□ Procedure summarized, not step by step
□ Procedure written in past tense passive voice in paragraph form
□ Data tables included (descriptive observations)
□ Analysis: What pattern can you describe for the precipitation of the sulfate salts, oxalate
salts, carbonate salts?
□ Analysis: Which combinations of chemicals are the most soluble? How do you know?
□ Analysis: Which of the combinations are the least soluble? How do you know?
□ Analysis: Are the reactivity tendencies observed with the sulfate and Group 2 ions
supported by the reactions with the oxalate and carbonate ions? Explain.
□ Analysis: Write a general statement to describe the reactivity of Group 2 ions.
□ Analysis: Did your results of this experiment support your hypothesis about the properties
of Group 2 metals? Explain.
□ Analysis: Predict what would happen if Ra+2 ions were used in the three tests. Explain.
□ Analysis: Predict what would happen if Be+2 ions were used in the three tests. Explain.
□ Analysis: How could this experiment be extended in order to place each element within a
family in the periodic table? What types of reaction would be most useful in characterizing
the elements? Which family of elements would be the hardest to characterize? Why?
□ Conclusion: Summary made (what were your results?)
□ Conclusion: Significance, relate to what is learned in class
□ Conclusion: errors discussed
□ Conclusion: improvements suggested
□ Conclusion: did you achieve goal/purpose of lab? How?
Total: ______________ out of 40