Science / Year 9 / Science Understanding / Chemical sciences

Curriculum content descriptions

Chemical reactions, including combustion and the reactions of acids, are important in both non-living and living systems and involve energy transfer (ACSSU179)

Elaborations
  • investigating reactions of acids with metals, bases, and carbonates
  • investigating a range of different reactions to classify them as exothermic or endothermic
  • recognising the role of oxygen in combustion reactions and comparing combustion with other oxidation reactions
  • comparing respiration and photosynthesis and their role in biological processes
  • describing how the products of combustion reactions affect the environment
Cross-curriculum priorities
ScOT terms

Enthalpy,  Acids,  Redox reactions

Audio

Water-powered engine theories need hosing down

This ABC article by Dr Karl addresses the question: will we one day be able to power cars with water? The chemical reactions involved in the formation and decomposition of water are described. Energy transformations are explained. A very useful resource to get students thinking.

Video

All about engines

What does 'horsepower' really mean? And how do engines work? Join Luke and Abhi from MIT to find out! As Abhi explains, engines produce power by forcing a mixture of fuel and air into a tight space and then burning it. Piston engines and turbine engines do this in similar, yet different ways. After watching this video, ...

Interactive

Digestion – part 1

This resource consists of 4 sets of illustrated slides with voice over presenting highly detailed information about the process of digestion and the role and function of the various parts of the digestive system up to the small intestine (it is the first part of a resource).

Interactive

Digestion Experiments 2

Students use this resource consisting of ten slides with diagrams, written explanation and voice-over to understand that enzymes work best at a specific pH. There is a two-question quiz and a summary slide.

Text

Oxyfuel combustion

This fact sheet describes oxyfuel combustion, the technology that burns fuel in almost pure oxygen. Because this makes it easier to capture carbon dioxide from flue gas, there is the potential to achieve near-zero carbon dioxide emissions from the production of coal-fired electricity. A diagram illustrating this process ...

Text

Liquefied natural gas

Find out what liquefied natural gas (LNG) is and how it is produced and used. This is an information sheet describing the characteristics of LNG as well as how LNG is processed, stored, transported and used. It includes an image of an LNG tanker.

Interactive

Digestion Experiments

This resource consists of 3 sets of illustrated slides with voice over presenting detailed information and explanations of an experiment used to investigate the action of amylase on starch and the optimum pH for the action of protease on egg white protein. Results are provided and interpreted using tables and graphs. More ...

Interactive

Aerobic Respiration

This resource consists of 2 sets of automated illustrated slides with voice over presenting information about aerobic respiration and compares respiration with burning.

Text

Gas-fired power

Find out how gas-fired power stations work. This fact sheet describes the generation of electricity in gas-fired power stations, which typically produce 50 per cent less carbon dioxide than conventional coal-fired power plants. Information is provided about the Daandine Power Station located west of Brisbane, which uses ...

Video

Coal-fired power stations

Find out how a coal-fired power station makes electricity. This animated video in 11 parts shows the components and processes in a coal-fired power station. The narration explains what happens at each stage. Most of the statistical information and examples relate to locations in Queensland.

Interactive

Digestion Part 2 (sk- Intel)

This brief resource consists of 6 sets of illustrated slides with voice over presenting highly detailed information about the role and function of the various parts of the digestive system starting at the small intestine onwards (it is the second part of a resource).

Interactive

DIY Lava Lamp

This resource contains lessons plans containing instructions and teachers' notes for an activity based on a chemical reaction that occurs when a soluble aspirin tablet dissolves and the fact that oil and water do not mix are used to create a model of a lava lamp. Students have fun while they learn about density of fluids. ...

Interactive

DIY pH Indicator

This resource contains lessons plans containing instructions and teachers 'notes for an activity based on the natural pH indicator present in red cabbage leaves. It can be extracted following these explicit and clear directions included for this activity. This indicator solution changes colour from purple to bright pink ...

Interactive

Cool colour

This is a lesson plan, complete with instructions, materials list, worksheets and photographs of the expected results from the ABC's surfing scientist. The students are encouraged to participate in a first-hand science activity using sugar and colour-coated chocolate lollies.