Life Cycle Describe a biological method for extracting

Life Cycle Describe a biological method for extracting metals. LAST LESSON Put the following in order from smallest to largest; Population, ecosystem, biosphere, community, organism. LAST YEAR December 2021 Recall two steps on how we make fresh water potable. LAST WEEK Recall two pollutants and describe their effect on health. LAST TOPIC Challenge: Draw the structural formula for (poly)ethene.

Life Cycle December 2021

Describe what a life cycle assessment is.

Life Cycle December 2021 Describe which bag has a greater environmental impact (over the course of its life). Justify your answer.

Life Cycle December 2021 The Stages of Man: Identify the stages in a person’s life.

Life Cycle December 2021 So, what are the stages of a product’s life? E. g. Rubber ball. Raw materials manufacture Use Disposal

Define life cycle assessment. Life Cycle December 2021 Explain why LCA’s are important. Identify 3 steps in an LCA.

Life Cycle December 2021 An LCA works out the environmental impact of each of these stages of a product’s life: Including transport and distribution at each stage

Life Cycle Complete the assignment on teams. Describe the 4 stages of a life cycle assessment. December 2021 Evaluate the problems with Life Cycle Assessments. C H A L L E N G E Challenge: Compare LCA’s with your carbon footprint.

Life Cycle December 2021 Todays Lesson Define life cycle assessment. Last Lesson Recall 3 methods of extracting metals. Last Lesson Explain why it is important to treat waste water.