Science / Year 9 / Science Understanding / Chemical sciences

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Curriculum content descriptions

Chemical reactions involve rearranging atoms to form new substances; during a chemical reaction mass is not created or destroyed (ACSSU178)

Elaborations
  • identifying reactants and products in chemical reactions
  • modelling chemical reactions in terms of rearrangement of atoms
  • describing observed reactions using word equations
  • considering the role of energy in chemical reactions
  • recognising that the conservation of mass in a chemical reaction can be demonstrated by simple chemical equations
ScOT terms

Chemical reactions,  Molecular structure

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1 direct match to ACSSU178 | 4 other related resources

Audio

Water-powered engine theories need hosing down

  • TLF-IDM016135

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.

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Audio

Solar thermal electricity

  • TLF-IDM016584

This program gives an update on research into solar thermal electricity. Liddell Power Station in the Hunter Valley, NSW is a hybrid power station using solar energy to pre-heat water and so reduce the use of coal and the production of carbon dioxide. Some scientists claim that harnessing the solar heat in an area 50km ...

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Audio

WA students compete in US BioGENEius challenge

  • TLF-IDM016711

Yasmin Soliman and Kayla Mizzi are the two high school students who are finalists from Western Australia for the BioGENEius challenge in Atlanta Georgia. Both girls share their research and enthusiasm for science. Download the audio or view the transcript of this ABC radio interview.

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Audio

Chemicals on the Great Barrier Reef

  • TLF-IDM016174

This program deals with a range of human impacts on the Great Barrier Reef. Herbicides from land runoff have been traced to algae and sea grasses in river mouths and coastal zones along the Great Barrier Reef. Effects include retardation of photosynthesis and growth of corals. Other pressures on the reef include high water ...

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Audio

Mercury is released as coal is burnt in power stations

  • TLF-IDM015345

This resource describes research into environmental disease resulting from the heavy metal mercury. It is estimated 60,000 babies are born each year in the United States with mercury-related diseases from the burning of coal in power stations. World wide, this is a significant problem. Mercury also enters the environment ...

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