Comparing Samples

1 Annotation 1
Defines 'concrete' and explains how it is similar to natural rocks 2 Annotation 2
Describes rock cycle, refers to diagram and timescales 3 Annotation 3
Includes aim of investigation and details of experimental design 4 Annotation 4
Uses scientific reasoning to support hypothesis

1 Annotation 1
Describes experimental methods in detail

1 Annotation 1
Describes test results supported by detailed observations 2 Annotation 2
Presents numerical results in table

1 Annotation 1
Explains how one of the tests was unfair 2 Annotation 2
Explains how results support only certain aspects of hypothesis 3 Annotation 3
Describes safety precautions 4 Annotation 4
Restates aim and summarises how investigation was conducted 5 Annotation 5
Identifies optimal mixture 6 Annotation 6
Suggests improvements to experimental method for future investigations 7 Annotation 7
Provides list of resources used to research topic of investigation

1 Annotation 1
Defines aspects of rock cycle that are relevant to investigation 2 Annotation 2
Identifies timescales as main difference between natural rock cycle and processed materials used in investigation 3 Annotation 3
Uses diagram to describe rock cycle 4 Annotation 4
States clear aim and purpose of investigation 5 Annotation 5
Uses scientific reasoning and valid inference to support hypothesis

1 Annotation 1
Describes experimental methods in clearly structured layout using appropriate headings

1 Annotation 1
Describes test results supported by detailed observations 2 Annotation 2
Provides detailed observations

1 Annotation 1
Presents results in clearly structured layout using appropriate headings and well-organised tables 2 Annotation 2
Describes individual results systematically using precise and consistent wording 3 Annotation 3
Provides additional relevant information and summarises outcome of individual tests 4 Annotation 4
Explains in detail how results contradict hypothesis

1 Annotation 1
Summarises results and concludes that they do not support hypothesis 2 Annotation 2
Uses evidence from each test result to justify selection of optimal mixture 3 Annotation 3
Explains how one test was unfair and suggests viable improvement to method

1 Annotation 1
Identifies and classifies variables as independent, dependent and controlled 2 Annotation 2
Restates aim and concisely summarises how investigation was conducted 3 Annotation 3
Restates which mixture was found to be optimal 4 Annotation 4
Reiterates how hypothesis was not supported 5 Annotation 5
Suggests improvements to experimental method for future investigations 6 Annotation 6
Provides list of resources used to research topic of investigation

1 Annotation 1
Defines 'concrete' and explains how it is similar to natural rocks 2 Annotation 2
Describes rock cycle, refers to diagram and timescales 3 Annotation 3
Includes aim of investigation and details of experimental design 4 Annotation 4
Uses scientific reasoning to support hypothesis

1 Annotation 1
Describes experimental methods in detail

1 Annotation 1
Describes test results supported by detailed observations 2 Annotation 2
Presents numerical results in table

1 Annotation 1
Explains how one of the tests was unfair 2 Annotation 2
Explains how results support only certain aspects of hypothesis 3 Annotation 3
Describes safety precautions 4 Annotation 4
Restates aim and summarises how investigation was conducted 5 Annotation 5
Identifies optimal mixture 6 Annotation 6
Suggests improvements to experimental method for future investigations 7 Annotation 7
Provides list of resources used to research topic of investigation