C3.4.3 recall that PVC is a polymer that NA  contains chlorine as well as carbon and hydrogen C3.4.4 understand that the plasticizers used to modify the properties of PVC can leach NA  out from the plastic into the surroundings where they may have harmful effects C3.4.5 understand that a Life Cycle Assessment (LCA) involves consideration of the use of resources describe the basic principles in carrying including water, the energy input or out a life-cycle assessment of a material C4.5.4  output, and the environmental impact, or product including a) the use of water, of each of these stages: energy and the environmental impact of a. making the material from natural raw each stage in a life cycle, including its materials manufacture, transport and disposal b) b. making the product from the material incineration, landfill and electricity c. using the product generation schemes c) biodegradable d. disposing of the product and non-biodegradable materials C3.4.6 when appropriate information from a Life Cycle Assessment (LCA), C4.5.5  compare and evaluate the use of different materials for the same interpret data from a purpose. assessment of a material or product C4.1.1 C2.2.1 explain how the position of an element in the Periodic Table is related to the understand that atoms of each element arrangement of electrons in its atoms have different proton numbers and hence to its atomic number C4.1.2 understand that arranging the explain how the position of an element C2.2.1 elements in order of their proton in the Periodic Table is related to the  numbers gives repeating patterns in arrangement of electrons in its atoms the properties of elements and hence to its atomic number C4.1.3 understand that early attempts to find connections between the chemical NA  properties of the elements and their relative atomic mass were dismissed by the scientific community
C3.4.3 recall that PVC is a polymer that contains chlorine as well as carbon and hydrogen NA  C3.4.4 understand that the plasticizers used to modify the properties of PVC can leach out from the plastic into the surroundings where they may have harmful effects NA  C3.4.5 understand that a Life Cycle Assessment (LCA) involves consideration of the use of resources including water, the energy input or output, and the environmental impact, of each of these stages: a. making the material from natural raw materials b. making the product from the material c. using the product d. disposing of the product C4.5.4 describe the basic principles in carrying out a life-cycle assessment of a material or product including a) the use of water, energy and the environmental impact of each stage in a life cycle, including its manufacture, transport and disposal b) incineration, landfill and electricity generation schemes c) biodegradable and non-biodegradable materials  C3.4.6 when appropriate information from a Life Cycle Assessment (LCA), compare and evaluate the use of different materials for the same purpose. C4.5.5 interpret data from a assessment of a material or product  C4.1.1 understand that atoms of each element have different proton numbers C2.2.1 explain how the position of an element in the Periodic Table is related to the arrangement of electrons in its atoms and hence to its atomic number C4.1.2 understand that arranging the elements in order of their proton numbers gives repeating patterns in the properties of elements C2.2.1 explain how the position of an element in the Periodic Table is related to the arrangement of electrons in its atoms and hence to its atomic number  C4.1.3 understand that early attempts to find connections between the chemical properties of the elements and their relative atomic mass were dismissed by the scientific community NA 
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