Whole Topic Checklist

• State what humans use Earth's resources for, give some examples of natural resources that they use
•  Define the term finite and distinguish between finite and renewable resources
•  Explain what sustainable development is and discuss the role chemistry plays in sustainable development, including improving agricultural and industrial processes
•  State examples of natural products that are supplemented or replaced by agricultural and synthetic products
•  Discuss the importance of water quality for human life, including defining potable water
•  Describe methods to produce potable water, including desalination of salty water or sea water and the potential problems of desalination
•  Required practical 13: analysis and purification of water samples from different sources, including pH, dissolved solids and distillation.
•  Describe waste water as a product of urban lifestyles and industrial processes that includes organic matter, harmful microbes and harmful chemicals
•  Describe the process of sewage treatment and compare the ease of obtaining potable water from waste water as opposed to ground or salt water
•  HT ONLY: Name and describe alternative biological methods for extracting metals, including phytomining and bioleaching
•  HT ONLY: Evaluate alternative methods for extracting metals
•  Describe, carry out and interpret a simple comparative life cycle assessment (LCA) of materials or products
•  Discuss the advantages and disadvantages of LCAs
•  Carry out simple comparative LCAs for shopping bags made from plastic and paper
•  Discuss how to reduce the consumption of raw resources and explain how reusing and recycling reduces energy use (inc environmental impacts)
•  Chem ONLY: Define corrosion and describe rusting as an example of corrosion
•  Chem ONLY: Describe ways to prevent corrosion, including providing coatings, sacrificial protection and explain how sacrificial protection works
•  Chem ONLY: Describe the following alloys bronze, gold, steels and aluminium, their uses and describe the benefits of using alloys instead of pure metals
•  Chem ONLY: Compare the properties of materials, including glass and clay ceramics, polymers and composites and explain how their properties are related to their uses
•  Chem ONLY: Discuss the different types of polymers and how their composition affects their properties, including thermosoftening and thermosetting polymers
•  Chem ONLY: Explain what composites are and provide examples of composites and their benefits over other types of materials
•  Chem ONLY: Describe the Haber process, including the reactants and products, recycling of remaining hydrogen and nitrogen and the chemical equation
•  Chem & HT ONLY: For the Haber process interpret graphs of reaction conditions versus rate
•  Chem ONLY: Apply the principles of dynamic equilibrium to the Haber process and discuss the trade-off between the rate of production and the position of equilibrium
•  Chem ONLY: Explain how the commercially used conditions for the Haber process are related to the availability and cost of raw materials and energy supplies
•  Chem ONL: Recall the names of the salts produced when phosphate rock is treated with nitric acid, sulfuric acid and phosphoric acid
•  Chem ONLY: Describe NPK fertilisers and the compounds they are composed of and compare the industrial production of fertilisers with the laboratory preparations

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