!! COVID-19 Update for Greater Sydney.  Learning from home continues for schools. Get the latest COVID-19 advice.

Visit the NSW Department of Education for any emergency updates including school closures and notifications regarding coronavirus (COVID-19)

The study of Chemistry recognises that a study of the nature of materials includes natural and made substances, their structures, changes and environmental importance.  The history and philosophy of science as it relates to the development of the understanding, utilisation and manipulation of chemical systems is important in developing current understanding in Chemistry and its applications in the contexts of technology, society and the environment.

  • How substances are classified.
  • How substances react.
  • Why substances react.
  • What happens when substances react.
  • How substances are used by humans.
  • How we can use substances to monitor the environment.

Students at STHS perform at a high level in the HSC for Chemistry with state rankings achieved each year.  Chemistry teaching focuses on scaffolding the longer response questions and ensuring that the boys are well prepared for the HSC.

Preliminary Course Topics

HSC Course Topics


Looking for a particular STHS publication? Click here to see a range of downloads including our monthly newsletter Tech Talk, the Annual School Report and the School Plan.


"Every individual has the right to realise himself: that is to fully develop the power and capacities, physical, mental, moral and spiritual; with which nature endowed him."

 − JA Williams, 1912 (first Principal of Sydney Technical High School)