AC9S9U04 Year 9 Science

AC9S9U04 – Year 9 Science: Physical sciences

Strand

Science understanding

Substrand

Physical sciences

This Content Descriptor from Year 9 Science provides the specific knowledge and skills students should learn. Use it to plan lessons, create learning sequences, and design assessments that align with the Australian Curriculum v9.

Content Descriptor

use wave and particle models to describe energy transfer through different mediums and examine the usefulness of each model for explaining phenomena

Elaborations

• describing the processes underlying convection and conduction of heat in terms of the particle model
• modelling the transfer of sound energy as waves using slinky springs and relating to the medium through which the sound is transferred
• examining how the particle model of electricity explains static electricity and electrical current and relating this to voltage, conductors and insulators
• discussing the wave and particle models of energy transfer, including the concept of photons, and how they are useful for understanding aspects of light and other forms of electromagnetic radiation
• investigating aspects of heat transfer and conservation in the design of First Nations Australians’ bedding and clothing in the various climatic regions of Australia
• investigating the impact of material selection on the transfer of sound energy in First Nations Australians’ traditional musical, hunting and communication instruments
• examining the forms of electromagnetic radiation that are used in different modern communication technologies and identifying any limitations

Achievement Standard This Supports

This Content Descriptor contributes to the following Achievement Standard:

Year 9 ASSCIY9

Year 9 Science Achievement Standard

By the end of Year 9 students explain how body systems provide a coordinated response to stimuli. They describe how the processes of sexual and asexual reproduction enable survival of the species. They explain how interactions within and between Earth’s spheres affect the carbon cycle. They analyse energy conservation in simple systems and apply wave and particle models to describe energy transfer. They explain observable chemical processes in terms of changes in atomic structure, atomic rearrangement and mass. Students explain the role of publication and peer review in the development of scientific knowledge and explain the relationship between science, technologies and engineering. They analyse the different ways in which science and society are interconnected. Students plan and conduct safe, reproducible investigations to test or identify relationships and models. They describe how they have addressed any ethical and intercultural considerations when generating or using primary and secondary data. They select and use equipment to generate and record replicable data with precision. They select and construct appropriate representations to organise, process and summarise data and information. They analyse and connect data and information to identify and explain patterns, trends, relationships and anomalies. They analyse the impact of assumptions and sources of error in methods and evaluate the validity of conclusions and claims. They construct logical arguments based on evidence to support conclusions and evaluate claims. They select and use content, language and text features effectively to achieve their purpose when communicating their ideas, findings and arguments to specific audiences.