QC Sec 4 Science & Tech case studies
QC Sec 4 Science & Tech · Put your knowledge to work in context.
Section 4 of the Queensland Core Skills (QCS) Test, Science and Technology, assesses how well students interpret scientific information and apply technological reasoning in unfamiliar contexts. It is intended for Queensland senior secondary students preparing for the QCS Test, which contributes to the Overall Position (OP) ranking used for tertiary entrance. The section presents stimulus material - tables, graphs, diagrams, short experimental scenarios and descriptions of technological systems - followed by multiple-choice questions. Candidates are asked to read data accurately, identify trends and anomalies, evaluate evidence and experimental design, reason about variables and controls, and apply scientific literacy to real-world problems. The QC Sec 4 Science & Tech case studies are 5 cases and about 3,608 words.
1River Turbidity: Baseline, Episodic Peaks and a Maintenance Outlier
A volunteer group samples River Alden weekly for 12 weeks at two sites: Upstream (U), in woodland, and Downstream (D), below a housing development and a storm drain. Grab samples are taken Tuesdays at 09:00.
725 words, about 4 min2Biochar and Lettuce: A Greenhouse Trial with Confounded Light
Year 10 students test whether biochar improves lettuce growth. They fill 24 pots with the same compost and add biochar to 12 pots at 5% by volume; the other 12 are controls.
740 words, about 4 min3Solar-Powered Vineyard Weather Station in Winter
A vineyard installs a remote weather station powered by a 12 V lead-acid battery and a 10 W solar panel. The sensor and data logger draw an average of 28 mA continuously.
673 words, about 3 min4A Supplement Claim and a Pharmacy Notice
A news item reports that a 'new supplement boosts memory by 23%'. The underlying study recruited 42 adults from a supplement company's customer mailing list.
705 words, about 4 min5Alum Treatment for a Shallow Eutrophic Lake
A 40-hectare shallow lake has a mean depth of 2.5 m. Summer monitoring gives total phosphorus (TP) 85 µg/L, chlorophyll a 45 µg/L and Secchi depth 0.6 m.
765 words, about 4 min