AC9S9U07 Year 9 Science

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.

model the rearrangement of atoms in chemical reactions using a range of representations, including word and simple balanced chemical equations, and use these to demonstrate the law of conservation of mass

Elaborations

• 1 identifying reactants and products in chemical reactions
• 2 using models and representations to show the rearrangement of atoms in chemical reactions
• 3 investigating chemical reactions in closed and open systems and relating data obtained to the law of conservation of mass
• 4 writing symbolic equations that are easy to balance and explaining, using the law of conservation of mass, and atoms, the rationale for balancing chemical equations
• 5 investigating why most elements are not found in their elemental state and processes which are used to obtain the element
• 6 predicting how ideas of green chemistry such as minimising the amount of unusable waste products, energy use and using more environmentally friendly chemical processes will affect the environment

Related Achievement Standards