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De La Salle College Online - INSPIRING THE IMAGINATION AND SEEKING NEW HEIGHTS
AS1.7 Properties of Metals (Internal)

Achievement standard:   90946
Investigate the implications of the properties of metals for their use in society
Level:                                 1
Credits:                           4
Resource title:                      The big catch
Resource reference:         Science VP-1.7 v2
Vocational pathway:        Manufacturing and Technology

INTRODUCTION
This assessment activity requires you to investigate the implications of the properties of metals and how this determines their suitability for manufactured items used in the fishing industry.
You are going to be assessed on how comprehensively you investigate the implications of the properties of metals for their use for fish storage containers in the fishing industry.
The following instructions provide you with a way to structure your work so you can demonstrate what you have learnt and achieve success in this standard.
 

STUDENT TASK

The engineering company that you work for has been approached by a fisherman who needs a container to store fish. The container needs to be made of metal and has to hold at least 200 kg of fish. The fisherman has heard that iron, aluminium, zinc, copper and chromium are possible metals that could be used. Fish containers are subjected to sea water and rough handling and therefore must be resistant to corrosion and need to be durable. They also need to be as lightweight as possible for easy handling. You, an engineer in the company, are tasked with the responsibility of identifying the best metal that could be used to make fishing containers.

This activity is to be carried out individually.

investigate

Investigate iron, aluminium, zinc, copper and chromium and provide the following information for each:
  • reaction with oxygen
  • reaction with water
  • hardness
  • malleability
  • ductility
  • density.
Use your local library and internet sources to research the implications of the properties of iron, aluminium, zinc, copper and chromium for their use and suitability in the fishing industry for use in fish storage containers.

produce a report

You must produce a report which identifies the benefits and drawbacks of using the different metals you have investigated and the implications of the properties of the metals in their use for fish storage containers.
Report in detail on:
  • the benefits of the different types of metals in the containers
  • the drawbacks of the different types of metals in the containers
  • the physical and chemical properties of the metals which would make them suitable for their use in the container
  • links between the chemical and physical properties of the metals and their different use
  • circumstances in which you would use these different types of metals for the containers.
In your report use chemistry vocabulary, symbols and conventions, for example names and formulae, including writing balanced symbol equations.

REPORT FORMAT : WRITTEN TYPED (10 PAGES MAXIMUM)
1. FONT: Ariel FONT SIZE: 12
2. LEFT AND RIGHT JUSTIFY
3. SPACING at 1.5
4. INCLUDE ALL REFERENCES AT THE END

DUE DATE : MONDAY WEEK ONE TERM THREE
 

Links and resources

Below is an image of the research grid you can use to assist in your planning. Underneath is the link to download.
RESEARCH GRID FOR AS90946.docx
click to download