Curriculum into the classroom EEC
Science
Water — Waste not, want not at North Keppel Island
Lesson 4
Year 7
Unit 1
Mixtures and substances — Investigating mixtures and substances
Lesson concepts
Mixtures are a
combination of pure
substances
Experiments are
collaboratively conducted
ensuring safety guidelines
are followed
Equipment is selected to
collect data with
appropriate accuracy
Ideas and findings are
communicated using
scientific language and
representations
Example learning sequence
Discuss water
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Define solubility (1/2 group)
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View year level mapping of
concepts
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Learning area specific
language:
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Lesson objectives
Students will:
Review the concept of dissolving as a process.
Clarify terms relating to dissolving such as solvent, solute and
solution.
View an example of solubility.
Explore mixtures and substances (1/2 group)
View unit mapping of concepts
substance, dissolve, solvent,
solute, solution, soluble,
solubility, mixture, pure
Discuss catchments as per previous lesson
River flow story example of pollution added
Discuss how water is found naturally as a mixture with many
dissolved substances in it including minerals and gases.
Discuss how water is a mixture in relation to drinking water.
Explain how water can be purified by removing the dissolved
substances.
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Define pure substances.
Define mixtures.
Explore types of mixtures.
Communicate findings from explorations.
Explore everyday mixtures and substances
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Make suggestions about substances, mixtures and solutions used
in everyday life.
How can mixtures effect the reef through river pollution
Extension Activity
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Snorkel on a degraded reef then on a healthy one
Identify the effect of mixtures within saltwater affecting reef quality
understand that water is found
naturally as a mixture
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identify the characteristics of
pure substances and mixtures.
Example resources
River flow story – Fitzroy River
Identify factors where mixtures
within saltwater can effect reef
growth
Learning object — Making Water Drinkable — Mixtures © The State of
Victoria (Department of Education, Employment and Training), 2000
Evidence of learning
Materials and equipment list
Can the student:
understand that in a solution,
water is the solvent?
identify the pure substances in
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Andrew Gill (NKIEEC)
Sheet — Solubility fair test
Sheet — Mixtures procedures
Safety
a solution mixture?
Ideas for monitoring
Monitor students’ ability to:
understand solubility, mixtures
and substances.
Teachers need to:
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identify safety issues relevant to the practical activities and
conduct risk assessments relating to mixing substances
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refer to Workplace health and safety (WHS) policy pertaining to
schools.
Australian Curriculum references for this lesson
Learning alerts
Year 7 Science — Content descriptions
Be aware of:
Science Understanding
students who think that solutes
disappear when they dissolve
Chemical Sciences
students who think that a
mixture always has a liquid
component
students stating that mixtures
are always multi-coloured.
Suggested next steps for
learning
Clarify with students that
solutes are always present in a
solution, but are too small to be
seen.
Inform students that mixtures
can be made of any
combination of solids, liquids or
gases.
Mixtures, including solutions, contain a combination of pure substances
that can be separated using a range of techniques
Science Inquiry Skills
Planning and conducting
Collaboratively and individually plan and conduct a range of
investigation types, including fieldwork and experiments, ensuring
safety and ethical guidelines are followed
In fair tests, measure and control variables, and select equipment to
collect data with accuracy appropriate to the task
Communicating
Communicate ideas, findings and solutions to problems using scientific
language and representations using digital technologies as appropriate
View a mapping of the Science Content descriptions for this unit
View a mapping of the Science Content descriptions for this year level
<Australian Curriculum: Science for Prep(F)-10 Version 3.0
http://www.australiancurriculum.edu.au/Science/F-10
[accessed on 27 July 2012]
Remind students that mixtures
may be of any colour or
colourless.
Ideas for differentiation
Support
Provide hands-on activities for
students to further explore
substances and the concept of
dissolving.
General capabilities
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Literacy
Comprehending texts through listening, viewing and reading
Composing texts through speaking, writing and creating
Text knowledge
Work knowledge
Visual knowledge
Numeracy
Interpreting and drawing conclusions from statistical information
Extension
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Allow students to elaborate on
different types of mixtures by
exploring colloids and
suspensions.
ICT capability
New
Ongoing
Queensland Student ICT Expectations:
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Operating with ICT
Student ICT Expectations — by the end of Year of 7
http://education.qld.gov.au/smartclassrooms/ictstudents/8-9.html
[accessed on 31 July 2012]
Australian Curriculum ICT learning continuum:
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Managing and operating ICT
New & building for assessment
Ongoing & building for
assessment
New & building for monitoring
Ongoing & building for monitoring
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Andrew Gill (NKIEEC)
Critical and creative thinking
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Inquiring — identifying, exploring and clarifying information
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Generating innovative ideas and possibilities
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Reflecting on thinking, actions and processes
Personal and social competence
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Social management
View a mapping of the General capabilities learning continua for this
unit
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Andrew Gill (NKIEEC)