|
Contributed by: New York State Alternative Assessment in Science
Project (NYSED)
Maximum Score - 16 Points
| Question 1. Graph |
7 points total |
| Graph Set Up |
4 points total |
- Allow 1 point for an appropriate title.
- Allow 1 point for labeled axes.
- Temperature- horizontal axis
- Dissolved oxygen- vertical axis
- Allow 1 point for use of appropriate scale on both axes.
- Allow 1 point for providing appropriate scale on both axes.
| Graph Plotting |
2 points total |
- Allow 2 points if all four points are plotted correctly.
- Allow 1 point if three points are plotted correctly.
- No credit if fewer than three points are plotted correctly.
- Allow 1 point if the line is drawn correctly.
| Question 2. Prediction |
5 points total |
Part A
- Allow 1 point if the student correctly gives temperature value
based on their graph.
- Allow 1 point if the student records units in degrees Celsius.
Part B
- Allow 1 point if the student's statement reflects that the
temperature change produces a response due to the unfavorable
habitat.
- Allow 2 points if the student uses complete sentences to explain
that the temperature change reduces the dissolved oxygen level
and produces respiratory stress in the fish population.
- Allow 1 point if the student's explanation is correct but
not written in complete sentences.
- No credit if the student's explanation is incorrect even if
it is written in complete sentences.
| Question 3. Prevention Methods |
4 points total |
- Allow 2 points each for acceptable suggestions for prevention
of thermal pollution. Suggestions must be written in complete
sentences.
- Allow 1 point for each acceptable suggestion, but not written
in complete sentences.
Sample of acceptable suggestions:
- Hot water could be stored in holding ponds before release.
- Hot water could be used in some part of the factory.
- Cooling towers could be constructed to let heat leave the water
before it is released.
|
Highest possible score - 16 points |
|
