Grade 58 Performance Task
Contributed by: New York State Education Department (NYSED)
NYS Alternative Assessment in Science Project (1996)
Tasks 13  Directions 
No Credit

Task 4  Design 
5 points total

Standard: The student will design an experiment to show
the effect of temperature on chemical weathering
Criteria:
Allow 1 point for each of the following:
Task 5  Experiment 
No Credit

Task 6  Recording of Data 
3 points total

Standard: The student will record data that were collected.
Criteria:
Allow 1 point for each of the following:
 recording initial time/temperature data
 recording each experimental value (up to 2 points)
2 points if all data are accurately recorded
1 point if some data are inaccurate or missing
Task 7  Graph 
4 points total

Standard: The student will graph data that were collected.
Criteria:
Allow 1 point for each of the following:
 both axes are labeled properly
 both axes have proper units
 two or more correctly plotted points on the graph
 properly drawn line connecting data points
Task 8  Prediction 
3 points total

Standard: The student will show an appropriate line on
the graph.
Criteria:
 Allow 1 point for a line drawn that shows a faster dissolving
rate. Either above or below line, but with a steeper slope.
 Allow 2 points for an answer that reflects a faster dissolving
rate, using complete sentences.
 Allow 1 point for a correct answer that is not in a complete
sentence.
 Allow 0 points for incorrect answer.
Task 9  Relating Information 
2 points total

Standard: The student will relate data from the model
to natural materials on Earth.
Criteria:
 Allow 2 points for an answer that reflects that warmer climates
increase the rate of weathering, and uses complete sentences.
 Allow 1 point for a correct answer that is not in a complete
sentence.
 Allow 0 points for incorrect answer.
Task 10  Generalizing/Inferring 
4 points total

Standard: The student will describe an experiment.
Criteria: The experimental design should receive 1 point
for each appropriate variable that is included (temperature, tablet
amounts, liquid volumes, laboratory safety, and solution type
[weak acid]).
 Allow 1 point for each variable (up to a total of 4 points)
Highest Score Possible 
21 points

Chemical Weathering  Scoring Form
Student ID _________________
Male / Female (circle one)
Circle the student's score for each question. Add the points for
each question and write the total score at the bottom of the scoring
form.
Task 13. Directions 



No credit



Task 4. Design 
0

1

2

3

4

5

Task 5. Experiment 



No credit



Task 6. Recording data 






Initial (room) temp. 
0

1





Experimental data 
0

1

2




Task 7. Graph 






Axes labeled 
0

1





Proper units 
0

1





2 or more correctly plotted points 
0

1





Properly drawn line connecting data
points 
0

1





Task 8. Prediction 






Line drawn (prediction) 
0

1





Reason 
0

1

2




Task 9. Relating information 
0

1

2




Task 10. Generalizing / Inferring 
0

1

2

3

4

5

TOTAL SCORE ________________
Total possible score  21 points
