Explain how the system works in terms of input, process, output, and feedback. Scoring Guide Score Description 4 Response demonstrates a thorough understanding of how a system works. 3 Response demonstrates a broad, but general, understanding of how a system works. 2 Response demonstrates a limited understanding of how a system works. 1 Response demonstrates minimal understanding of how a system works.
Response is incorrect or irrelevant.
Open Response Question 25 You work for a fertilizer company. Your boss has decided to develop a new technique that will involve water-based solutions of potassium nitrate, instead of dry powders. You have been assigned to design an experiment. Be sure to include the variables to be controlled, varied, and measured. Scoring Guide Score Description 4 Response provides a sophisticated experimental design to determine a solubility curve for KNO 3 .