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Level 7: Chemistry

Chemical book keeping unit

Focus questions

  • How do we determine the amount of a substance needed for a desired reaction (for example, making sherbet to get the maximum fizz)?
  • How do we accurately and reliably measure the amount of a particular substance in a given sample?

Possible investigations

  • How do we calculate the mass of a single atom?
  • Why is the 'mole' an important concept for chemists?
  • What do the words 'composition' and 'stoichiometry' mean in chemistry?
  • What do the labels on bottles of beer, wine and spirits tell us about the different levels of alcohol they contain?
  • How do we determine whether the concentration given for a bottle of vinegar is correct?

Possible assessments

Learning could be assessed using a variety of standards – for example:

  • AS91161 Chemistry 2.1: Carry out quantitative analysis (4 credits, internal)

Chemistry and me unit

Focus questions

  • How do I benefit from chemistry in my everyday life?
  • What are the potential benefits for consumers from the discovery of conducting polymers by New Zealand scientist Alan MacDiarmid?

Possible investigations

  • What is nanotechnology? Where may it take us in the future?
  • How do smart materials work and where are they used?
  • How were nicotine patches developed?
  • How safe is SPF 30?
  • What is the chemistry behind the development of new paint formulations?
  • What are the chemical and physical effects of plastics on the environment? What happens when plastics are thrown away?
  • What are the risks and benefits of the chemicals used to limit the environmental damage of an oil spill?
  • What’s the problem with steroids in sport?
  • Can antioxidants really prevent aging?
  • How can we reduce methane emissions on the farm?

Possible assessment

Learning could be assessed using a variety of standards – for example:

  • AS91163 Chemistry 2.3: Demonstrate understanding of the chemistry used in the development of a current technology (3 credits, internal)

Last updated December 14, 2012