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Write Testable Criteria and Constraints
Worksheet
Grade Level
Grade 8
8.131 Write Testable Criteria and Constraints
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A greenhouse ventilation system must prevent overheating but conserve water in seed trays. Which option best drafts criteria and constraints?
A
Criteria: uses a fan; Constraints: keeps plants healthy.
B
Criteria: opens windows; Constraints: is not too hot.
C
Criteria: temperature inside stays below 30 C for 30 minutes under the lamp and seed-tray water loss stays below 20 mL; Constraints: vent openings must keep insects larger than 3 mm out.
D
Criteria: looks professional; Constraints: uses plastic.
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