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Bouncing balls – AT (Year 8)

Work samples

Science

Year 8

Satisfactory

Bouncing balls

Summary of task

Prior to the sample task, students investigated investigated forms of energy and energy transfers and transformations.

As part of the unit, students were required to undertake a practical investigation to identify the relationship between drop heights and bounce heights of a variety of balls. A report-planning scaffold was provided. Students were required to interpret their results with reference to energy transfers and transformations. The task was completed over two 50-minute lessons.

Achievement standard

By the end of Year 8, students compare physical and chemical changes and use the particle model to explain and predict the properties and behaviours of substances. They identify different forms of energy and describe how energy transfers and transformations cause change in simple systems. They compare processes of rock formation, including the timescales involved. They analyse the relationship between structure and function at cell, organ and body system levels. Students examine the different science knowledge used in occupations. They explain how evidence has led to an improved understanding of a scientific idea and describe situations in which scientists collaborated to generate solutions to contemporary problems. They reflect on implications of these solutions for different groups in society.

Students identify and construct questions and problems that they can investigate scientifically. They consider safety and ethics when planning investigations, including designing field or experimental methods. They identify variables to be changed, measured and controlled. Students construct representations of their data to reveal and analyse patterns and trends, and use these when justifying their conclusions. They explain how modifications to methods could improve the quality of their data and apply their own scientific knowledge and investigation findings to evaluate claims made by others. They use appropriate language and representations to communicate science ideas, methods and findings in a range of text types.

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Annotations
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Annotation 1
Identifies some forms of energy and uses understanding of energy transformations to support hypothesis
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Annotation 2
Describes steps of experimental method

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Annotation 1
Identifies variables to be changed, measured and controlled
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Annotation 2
Identifies some actions that will contribute to conducting a fair test
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Creates appropriately labelled table to present measured data

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Annotations
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Annotation 1
Constructs line graph that follows most graphing conventions and clearly demonstrates trend in data
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Annotation 2
Creates appropriately labelled table to present measured data
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Annotation 3
Analyses patterns in data to justify observed trend
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Annotation 4
Explains observations with reference to energy transformations and transfers