Learning objects Mystery substances: emergency case

TLF ID L2363

Solve crimes by identifying pure substances and components of mixtures. Carry out urgent chemical tests on common substances such as salt, baking soda and sugar. Observe and record how each substance reacts with a range of liquids and to heat. Build up a data table of chemical properties and use it to match a mystery substance found at a crime scene. Improve your chances of catching the criminal by doing as few tests as possible. This learning object is one in a series of five learning objects. Some of the objects in the series are also packaged in two combined learning objects.



Educational details

Key learning objectives
  • Students carry out chemical tests on common substances.
  • Students observe and record changes that occur when common substances are heated or added to a range of liquid reagents.
  • Students use data tables to record and retrieve information.
  • Students use chemical tests to identify unknown substances in as few steps as possible.
Educational value
  • Introduces chemical analysis of pure substances and mixtures.
  • Demonstrates simple experimental procedures for testing reactions with liquids and heat.
  • Simulates reactions of common substances with iodine, water, vinegar and the action of heat.
  • Provides data tables for recording results.
  • Challenges students to extract information from a data table.
Year level

5; 6

Learning area
  • science
Strand
  • Science/Science inquiry skills
  • Science/Science understanding
    Concept
    • Science/Simple experiments
    • Science/Chemical reactions
    • Science/Physical properties
    Skill
    • Knowledge;
    • Comprehension;
    • Application;
    • Analysis
    Student activity
    • Interactives;
    • Experiment;
    • Analysis;
    • Modelling
    Learning design
    • Experiential learning;
    • Independent learning;
    • Problem solving;
    • Visual learning

    Other details

    Contributors
    • Script writer
    • Name: Erica Dale
    • Organisation: Tungaroo Software
    • Address: Manly NSW 2795 Australia
    • Subject matter expert
    • Name: Colin Web
    • Organisation: University of Western Sydney
    • Address: Penrith NSW 2750 Australia
    • URL: http://www.uws.edu.au/
    • Technical implementer
    • Name: Denis Goodrum
    • Organisation: Australian National University
    • Address: Canberra ACT 0200 Australia
    • URL: http://www.anu.edu.au/
    • Publisher
    • Date of contribution: 13 Aug 2013
    • Organisation: Education Services Australia
    • Address: Melbourne VIC 3000 Australia
    • URL: http://www.esa.edu.au/
    Access profile
    • Device independence
    • Hearing independence
    Learning resource type
    • Interactive Resource
    Browsers
    • Microsoft Internet Explorer - minimum version: 8.0 (MS-Windows) - maximum version: 9.0 (MS Windows)
    • Firefox - minimum version: (MS-Windows)
    • Safari - minimum version: 5.1 (MacOS)
    Operating systems
    • MacOS - minimum version: 10.6
    • MS-Windows - minimum version: XP - maximum version: 7
    Rights
    • © Education Services Australia Ltd, 2013, except where indicated under Acknowledgements.