Using resources

Topics

Choose a topic to revise

Sample objectives

What this unit covers

• Using the Earth's resources and obtaining potable water: Distinguish finite resources from renewable resources using given information.
• Using the Earth's resources and obtaining potable water: Explain how chemistry can improve agricultural and industrial processes to support sustainable development.
• Using the Earth's resources and obtaining potable water: Describe how fresh water sources are selected to produce potable water in the UK.
• Using the Earth's resources and obtaining potable water: Give reasons for the steps used to produce potable water.
• Using the Earth's resources and obtaining potable water: Explain that industrial waste water may contain organic matter and harmful chemicals.
• Using the Earth's resources and obtaining potable water: Describe aerobic biological treatment of effluent.
• Using the Earth's resources and obtaining potable water: Describe how copper can be obtained from solutions of copper compounds by electrolysis. (HT only)
• Using the Earth's resources and obtaining potable water: Evaluate biological methods of metal extraction from information provided. (HT only)
• Life cycle assessment and recycling: Explain why assigning numerical values to pollutant effects can involve value judgements.
• Life cycle assessment and recycling: Describe disposal, transport and distribution as stages in life cycle assessment.
• Life cycle assessment and recycling: Explain that some products cannot be reused and are recycled into different products.
• Life cycle assessment and recycling: Explain how reducing use, reusing products and recycling materials can reduce limited resource use.
• Using materials: Describe experiments that show both air and water are necessary for rusting. (Chemistry only; WS 2.2, 7, 3.5)
• Using materials: Explain how barrier coatings such as grease, paint and electroplating prevent corrosion. (Chemistry only)
• Using materials: Interpret alloy composition and evaluate uses of alloys from given information. (Chemistry only; MS 1a, 1c)
• Using materials: Distinguish a pure metal from an alloy in terms of composition.
• Using materials: Describe borosilicate glass as made from sand and boron trioxide and having a higher melting temperature than soda-lime glass. (Chemistry only)
• Using materials: Explain how material properties are related to uses and select suitable materials from given information. (Chemistry only)
• The Haber process and the use of NPK fertilisers: Explain that ammonia can be used to manufacture nitric acid. (Chemistry only)
• The Haber process and the use of NPK fertilisers: Explain that nitrogen, phosphorus and potassium compounds are used in fertilisers to improve agricultural productivity. (Chemistry only)
• The Haber process and the use of NPK fertilisers: Explain that ammonia can be used to make nitrogen-based fertilisers. (Chemistry only)
• The Haber process and the use of NPK fertilisers: Apply dynamic equilibrium ideas to the Haber process. (HT only; Chemistry only)