KH-SCI-IIS9 · After Unit 12 · Transition Benchmark
Units 10–12 Cumulative Chapter Test
Earth-system evidence, astronomy and cosmic evidence, and sustainable engineering synthesis before the comprehensive final.
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Evidence and belief-neutral assessment
Unit 10 questions distinguish observation, measurement, scientific inference, methodological naturalism, and worldview interpretation. Personal belief is not scored. Accuracy, evidence classification, reasoning, source fairness, and respect are scored.
Objective assessment
Complete all 60 questions
Work carefully through Units 10–12, monitor your answered-question count, and submit only after reviewing the complete test.
Assessment results
Review your performance
Use the unit breakdown and question review to identify strengths, corrections, and the next steps required for mastery.
Objective Result
Constructed section
Four responses complete the 100-point benchmark
Each response is scored from 0–10 using the educator rubric.
Unit 10
Earth Systems, Carbon Budgets, and Climate Evidence
A reservoir contains 850 units of carbon. During one year, 120 units enter and 145 units leave. Calculate net change and final reservoir size. Explain reservoir, flux, feedback, and forcing. Use a simple global energy-budget model to distinguish reflected, absorbed, and outgoing energy, and explain why an observed energy imbalance is evidence about system change rather than proof of one single cause. Propose one hazard-resilience or stewardship action, one measurable outcome, and one uncertainty or justice consideration.
Unit 11
Astronomical Scale, Spectra, Orbits, and Cosmic Evidence
A star is 12 light-years away. Explain what that distance means for lookback time. A transit blocks 1% of a star’s light; calculate the planet-to-star radius ratio using transit depth ≈ (Rp/Rs)². Explain how spectra provide evidence about composition, temperature, or line-of-sight motion. Distinguish direct measurement from inference, and describe how redshift, the cosmic microwave background, and elemental abundance provide different evidence for modern cosmology. Include one instrument or selection-bias limitation.
Unit 12
Sustainable Engineering: Criteria, Testing, Risk, and Iteration
A proposed design has criterion scores 8, 6, and 9 with weights 0.40, 0.30, and 0.30. Calculate its weighted score. Identify one hard constraint that could still disqualify the design. Describe a predictive model, a safe prototype or simulation test, the raw evidence that should be preserved, one uncertainty source, and an evidence-based revision. Include a life-cycle or end-of-life consideration and one accessibility, equity, privacy, labor, cultural, or environmental-justice consideration.
Integration
Earth–Space–Engineering Evidence Defense
Design a monitoring system for an Earth-system risk using remote sensing or another defensible measurement approach. State the scientific question, measured variables and units, relevant Earth-system process, how electromagnetic or remote-sensing evidence becomes an inference, and engineering criteria and constraints. Include calibration, uncertainty, data stewardship, safety, maintenance, and a rule for deciding when new evidence should trigger a design or policy revision.