HSC Science Extension study guide
HSC Science Extension · Work through your exam, one topic at a time.
Science Extension is a Stage 6 (Years 11–12) NSW syllabus area published by the NSW Education Standards Authority (NESA) within the Science learning area of the NSW Curriculum. It sits alongside the other senior secondary courses described on the NSW Curriculum site, which sets out how syllabuses are structured and how course options work for Years 11–12. The course is designed for senior science students who want to move beyond learning established content and instead investigate how scientific knowledge is built, tested and reported. Its four strands - the foundations of scientific thinking, the scientific research proposal, data, evidence and conclusions, and the scientific research report - trace the full arc of an independent investigation, from critiquing how claims are justified, through designing a feasible and ethical study, to analysing data and communicating findings in a formal report. The HSC Science Extension study guide has 4 sections and about 1,232 words.
01The Foundations of Scientific Thinking
Scientific thinking rests on a small set of interlocking ideas. Empiricism holds that claims about the world are settled by observation rather than authority or intuition.
317 words, about 2 min02The Scientific Research Proposal
A proposal is an argument that a question is worth asking and can be answered. It needs a research question that is focused, answerable and ethically permissible, ideally expressed with an independent variable , a dependent variable and a specified population.
319 words, about 2 min03The Data, Evidence and Conclusions
Data become evidence only through interpretation. Candidates must distinguish qualitative and quantitative data, accuracy (closeness to true value) from precision (closeness of repeated measurements), and random from systematic error.
284 words, about 1 min04The Scientific Research Report
A report communicates the study so that others could evaluate and replicate it. The conventional structure - introduction, methods, results, discussion, conclusion, references - is a reasoning sequence, not a formality.
312 words, about 2 min