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Answer Key
Grade 8 Science: Engineering Design — Optimize Under Constraints
1.
define/identify
2.
Criteria
3.
Constraints
4.
prototype
5.
improve
6.
data
7.
another
8.
constraints
9.
define problem, research, brainstorm, plan, build prototype, test, evaluate, improve (answers vary in wording)
10.
criteria: span 30 cm, hold 500 g; constraints: straws and tape only, 2 days (answers vary)
11.
reveals flaws and performance before final design; saves resources long-term
12.
padding increases comfort but adds weight/cost (answers vary)
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