mixing and separating

Unit overview: Students will look at the properties of mixtures and solutions, their uses in everyday life and then research a recent oil spill.

Main Scientific Principle within this unit is to identify the properties of various, commonly used household substances and relate this to the substances possible environmental impact.

Author(s):Leonie McDonald

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Band: Middle Years

Strand: Matter

Duration: The students have 4, 45 minute lessons a week, with one double lesson and 2 single lessons.

Published: July 2002

Financial assistance for the development of this resource was provided through the National Quality Teacher Program
Context: This unit of work was written for 150 Year 8 science students, all girls and of mixed ability. There are a wide variety of socio-economical groups within this Year 8 population, mostly students of Australian born parents with a few ESL students (both European and Asian).
Key Idea:

1. Students communicate understandings about the properties and personal uses of materials….current patterns of use.
2. Students pose questions to investigate ways in which physical and chemical processes can be altered in order to achieve desirable outcomes, …..preservation.

Elements of the SACSA Framework
Essential Learnings
Key Competencies
Outcome (SACSA Standards)

Futures
Identity
Interdependence
Thinking
Communication

Link to SACSA Essential Learnings

1: Collecting, analysing and organising information
2: Communicating ideas and information
3: Planning and organising activities
4: Working with others in teams.
6: Solving problems
7: Using technology.

List all Key Competencies

4.7 Compares properties of materials before and after physical and chemical change by planning, conducting, evaluating and communicating an investigation.

4.8 Recognises and describes conditions that influence reactions or change in materials.

© South Australian Science Teachers Association Inc. 2002