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Science / Year 9 / Science Understanding / Chemical sciences

View on Australian Curriculum website Australian Curriculum, Assessment and Reporting Authority
Curriculum content descriptions

All matter is made of atoms that are composed of protons, neutrons and electrons; natural radioactivity arises from the decay of nuclei in atoms (ACSSU177)

Elaborations
  • describing and modelling the structure of atoms in terms of the nucleus, protons, neutrons and electrons
  • comparing the mass and charge of protons, neutrons and electrons
  • describing in simple terms how alpha and beta particles and gamma radiation are released from unstable atoms
ScOT terms

Atoms

Audio

Green glow of radiation

Coming into contact with a large dose of radiation is known to be hazardous. But will it make you light up like a car dashboard at night? Some anecdotes that will engage the students to learn about radioactivity while dispelling a few myths.

Audio

CERN legend stuff of angels and demons

This ABC article or podcast by Dr Karl describes and outlines the role of the particle accelerator, the Large Hadron Collider and how it is helping to research the nature of mass. This article is dated (2008) as some significant results from the Large Hadron Collider have since been announced.

Interactive

Sites2See: Light and Matter

Links to resources to explore fundamental questions about light and matter and the application of the physics of light and matter to the past, the future and to space. Includes a quick quiz, links to additional DEC NSW physics resources and to the International Science School at the University of Sydney.

Video

Nano-engineering: science fiction or reality?

Explore the amazing field of nano-engineering. Imagine being able to construct molecular-sized machines that could do specific tasks like carrying out nano-surgery on damaged cell structures in your body. Decide for yourself what might be possible and what might just be science fiction.

Interactive

Sites2See: Spreadsheets for science

A page with example resources, exemplars and advice to help integrate spread sheet use in teaching and learning for science. Includes suggestions for use, tutorials and information on research and benefits, plus links to a range of related resources, including a teacher guide to using Microsoft Excel in the classroom

Online

Chemical reactions: teacher guide

This is a teacher guide containing material to support the planning and implementing of lessons for a unit on chemical reactions. It covers topics such as atomic structure, elements and the Periodic Table, chemical reaction rates and energy, conservation of mass, radioactivity, combustion, and reactions involving acids ...

Video

Japanese tsunami's nuclear threat, 2011

Remember the earthquake and following tsunami that hit Japan in March 2011 and damaged a nuclear power plant? Find out about the damage caused, what exploded and why, and the aftermath of the disaster. What debates about nuclear power plants were reignited by the events in Japan?

Interactive

NOVA Elements - iTunes app

Explore the elements contained in the periodic table and the structure of some molecules found in everyday items. Build an element by adding the correct number of protons, neutrons and electrons, and construct a molecule by correctly placing atoms onto the structure. Symbols and formulas used to represent elements and molecules ...

Interactive

Oresome world

This interactive resource takes students on a journey of discovery in the energy and mining world. Oresome world contains five games or modules: Coal, Energy, Gas, Low emissions and Mining, and within each of these there are several facilities to explore, such as the Underground mining site, Hydroelectric power station, ...

Interactive

Exploring atoms: atom structure

See how scientists such as Ernest Rutherford have investigated the structure of atoms. Explore possible models. Fire charged particles at atoms and find which model best fits the results. This learning object is one in a series of six objects. Three of the objects are also packaged as a combined learning object.

Interactive

Laptop wrap: Modelling atoms

A page with a focus on exploring different models of the atom. Includes tasks to present models of the atom.

Interactive

Sites2See: Nuclear jeopardy

Resources to help understand and debate the issues around continuing and future use of nuclear energy after the nuclear accidents in 2011 at Fukushima Daiichi and Fukushima Daini and after the Tohoku earthquake and tsunami. Includes links to sites and information for both sides of the nuclear energy debate, including information ...

Video

Exploring nanotechnology

Peter Binks, CEO of Nanotechnology Victoria, answers the question 'How does nanotechnology work?' Discover what nanotechnology is and see several examples in action, such as scratch-resistant paint used in the car industry. Consider future applications of nanotechnology in areas such as sports, health care, clothing and cleaning.

Video

Meet the BFFs: four fundamental forces

We all know something about gravity, but what about the other fundamental forces of physics? Explore the properties of two familiar forces experienced in daily life, and of two less familiar ones. How do they interact, and what keeps everything from falling apart? This video was Kate Dent's entry into the 2013 Sleek Geeks ...

Video

Can photons and atoms generate laser?

Electrons around atoms can absorb and emit photons of particular colours of light – see three different atomic models explain what's going on.

Interactive

Science Talk 2007: Jack Bacon

An interview with Dr Jack Bacon, NASA engineer and futurist. Jack talks to a teacher from Sydney Girls High School about his experiences on the Vomit comet and his research into alternative energy sources. Jack also shares with us his predictions for the future of science, space travel and energy sources.

Interactive

Sites2See: Databases for science

A page with downloadable examples, exemplars and advice to help integrate database use in teaching and learning for science. Includes suggestions and reasons for using databases in science, practise activities and information on research and benefits, plus links to a range of related resources.

Text

Chemical Reactions: student guide

This is a student guide that takes an in-depth look at chemical reactions with individual chapters on the structure of atoms, chemical changes and formula, radioactivity and nuclear energy, energy changes, and reactions involving acids and bases. Each part or chapter of this resource contains information, images and diagrams, ...

Interactive

Build an atom

This is an interactive resource that allows students to build an atom out of protons, neutrons, and electrons, and see how the element, charge, and mass change. Students can view the atoms using the electron shell model or cloud model. A small set of games give students the opportunity to review their understanding of how ...

Video

Atoms and organic compounds

Can you imagine someone who lived over 2400 years ago saying that all matter is made up of atoms? Democritus, an ancient Greek, did. Explore the history of this scientific idea with chemist Amanda Tilbury. Hear how Swedish scientist Jöns Berzelius postulated much later that only living tissue could make an organic compound ...