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HSC Earth and Environmental Science Research Assessment Task Marking RUBRIC Topic: Environments Through Time Weighting: 15% (29 points total) Syllabus Outcomes Covered: 9.3.1- 9.3.5 1. Describe cyanobacteria and explain how their evolution changed the Earth’s atmosphere. Criteria Provides a concise definition of cyanobacteria Provides an accurate description of the relationship between the evolution of cyanobacteria and the Earth’s atmosphere. Presents ideas in a clear and logical way Marks 2-3 Recalls some relevant information about cyanobacteria and the atmosphere 1 2. Compare the habitat of modern and ancient cyanobacteria. Criteria Describes the habitats of both modern and ancient cyanobacteria. Makes the difference between habitats of modern and ancient cyanobacteria clearly evident Presents ideas in a clear and logical way Recalls some relevant information about the habitats of both modern and ancient cyanobacteria Marks 2-3 1 3. Describe the process of banded iron formations and why they are no longer forming. Criteria Provides an accurate description how banded iron formations are formed Accurately explains why this process no longer occurs. Presents ideas in a clear and logical way Provides some relevant information about the banded iron formations 4. Marks 2-3 1 Calculate the percentage of original parent isotope left in a 3.8byo rock by using the K/Ar isotope with a half life of 1.2by. (Show all work) Criteria Correctly calculates the percentage of original parent isotope Marks 2 Presents answer clearly Shows all work Attempt at calculating the percentage of original parent isotope. May or not have correct answer 1 5. Describe the role of ozone in filtering ultraviolet radiation and the importance for life that developed during the Phanerozoic Eon. Criteria Provides a concise definition/description of ozone referring to a detailed diagram Provides a detailed outline explaining how ozone filters UV radiation Accurately explains the process of photolysis Discusses how important ozone was for life that developed during the Phanerozioc Presents ideas in clear and logical manner Provides a general idea and description of ozone, may or may not refer to a diagram Provides a basic description of photolysis Provides some relevant information about the importance of ozone for life developing during the Phanerozoic Provides some relevant information about ozone and its importance for life Marks 4-5 2-3 1 6. Identify the major era subdivisions used to describe the Phanerozoic and basis for their divisions. Also describe the general trend in complexity of life forms throughout this era including specific examples. Criteria Accurately identifies the major era divisions of the Phanerozoic Provides a concise description for the basis of their divisions Provides an accurate outline of the trend in life complexity throughout this era Includes specific examples Presents ideas in a clear and logical manner Provides some relevant information about the major era divisions of the Phanerozioc Marks 2-3 1 7. Explain how the relative age of a fossil can be determined from a stratigraphic sequence. Criteria Provides a detailed outline explaining how the relative age of a fossil can be determined from a stratigraphic sequence Marks 2 Presents ideas in a clear and logical way Recalls some relevant information about the relative age of fossils 1 8. Discuss the environmental pressures faced by the first terrestrial organisms. Include examples of evolutionary solutions. Criteria Identifies and accurately describes the pressures faced by the first terrestrial organisms Provides examples of how these organisms evolved to survive in the new conditions Presents ideas in a clear and logical way Sketches in general terms some environmental pressures faced by the first terrestrial organisms Recalls some relevant information about how these organisms evolved to survive Marks 2 1 9. Describe the role of radiation following mass extinctions in evolution. Criteria Provides a concise definition/description of radiations and mass extinctions Accurately explains the role of radiation following mass extinctions in evolution Presents ideas in clear and logical manner Provides some relevant information about radiations and mass extinctions Marks 2 1 10. Outline the theory of evolution by natural selection. Criteria Accurately describes the theory of evolution and discusses how natural variations amongst individuals can give that organism a better chance of survival. Identifies that such variations can lead to new species Presents ideas in a clear and logical way Sketches in general terms the theory of evolution Recalls some relevant information about natural selection Marks 2 1 11. Evaluate this module by describe 3 things you enjoyed and propose any suggestions to make the module better in future. Criteria Identifies and describes 3 things they enjoyed about the module Provides at least one suggestion to make the module better in future Presents ideas in a clear and logical way Recalls some relevant information about the module Marks 2 1