current can bring about chemical change (electrolysis); electrolysis of salt recall uses of sodium solution (brine); hydroxide, interpret data about chlorine and the environmental hydrogen impact of the produced by electrolysis of electrolysis of brine brine understand that some toxic understand that there chemicals is sometimes persist in the inadequate data to environment, assess whether can be carried chemicals present a over large risk to the distances and environment and/or may accumulate in human health food and human tissues understand understand that the that PVC is a plasticisers used to polymer that modify the properties contains of PVC can leach out chlorine as from the plastic into well as the surroundings carbon and where they may have hydrogen harmful effects understand that a Life Cycle Assessment (LCA) is a consideration of the use of resources, energy input/output and environmental impact of each stage in the production, use and disposal of a product; compare and evaluate the use of different materials for the same purpose, given information from an LCA P1 Earth in the Universe Aiming for A – – Aiming Aiming Aiming for for Grade for Grade A E Grade C
current can bring about chemical change (electrolysis); recall uses of sodium hydroxide, chlorine and hydrogen produced by electrolysis of brine electrolysis of salt solution (brine); interpret data about the environmental impact of the electrolysis of brine understand that some toxic chemicals persist in the environment, can be carried over large distances and may accumulate in food and human tissues understand that there is sometimes inadequate data to assess whether chemicals present a risk to the environment and/or human health understand that PVC is a polymer that contains chlorine as well as carbon and hydrogen understand that the plasticisers used to modify the properties of PVC can leach out from the plastic into the surroundings where they may have harmful effects understand that a Life Cycle Assessment (LCA) is a consideration of the use of resources, energy input/output and environmental impact of each stage in the production, use and disposal of a product; compare and evaluate the use of different materials for the same purpose, given information from an LCA P1 – Earth in the Universe – Aiming for A Aiming for Grade E Aiming for Grade C Aiming for Grade A
Science-A-E-to-A-learning-objectives.docx