This is a unit designed to cover the Australian National Curriculum for Year 6 Chemical Science. In it, students investigate how materials change and how those changes can be reversible or irreversible.

The unit is extremely flexible, with many demonstrations and experiments. You can decide how much time you have to spend this term in Science, and you can stretch or condense the learning to suit your needs, and those of your students. There is also a quiz at the end of the unit for assessment.

6 x 1 hour lessons
Cross curriculum
21x resources/worksheets
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Australian Curriculum - (QLD/SA/WA/NT/TAS/ACT)

AC9S6U04

Compare reversible changes, including dissolving and changes of state, and irreversible changes, including cooking and rusting that produce new substances


AC9S6H01

Examine why advances in science are often the result of collaboration or build on the work of others


AC9S6H02

Investigate how scientific knowledge is used by individuals and communities to identify problems, consider responses and make decisions


AC9S6I01

Pose investigable questions to identify patterns and test relationships and make reasoned predictions


AC9S6I02

Plan and conduct repeatable investigations to answer questions including, as appropriate, deciding the variables to be changed, measured and controlled in fair tests; describing potential risks; planning for the safe use of equipment and materials; and identifying required permissions to conduct investigations on Country/Place


AC9S6I03

Use equipment to observe, measure and record data with reasonable precision, using digital tools as appropriate


AC9S6I04

Construct and use appropriate representations, including tables, graphs and visual or physical models, to organise and process data and information and describe patterns, trends and relationships


AC9S6I05

Compare methods and findings with those of others, recognise possible sources of error, pose questions for further investigation and select evidence to draw reasoned conclusions


AC9S6I06

Write and create texts to communicate ideas and findings for specific purposes and audiences, including selection of language features, using digital tools as appropriate


ACSSU095

Changes to materials can be reversible or irreversible


ACSHE098

Science involves testing predictions by gathering data and using evidence to develop explanations of events and phenomena and reflects historical and cultural contributions


ACSHE100

Scientific knowledge is used to solve problems and inform personal and community decisions


ACSIS232

With guidance, pose clarifying questions and make predictions about scientific investigations


ACSIS103

Identify, plan and apply the elements of scientific investigations to answer questions and solve problems using equipment and materials safely and identifying potential risks


ACSIS104

Decide variables to be changed and measured in fair tests, and observe measure and record data with accuracy using digital technologies as appropriate


ACSIS107

Construct and use a range of representations, including tables and graphs, to represent and describe observations, patterns or relationships in data using digital technologies as appropriate


ACSIS221

Compare data with predictions and use as evidence in developing explanations


ACSIS108

Reflect on and suggest improvements to scientific investigations


ACSIS110

Communicate ideas, explanations and processes using scientific representations in a variety of ways, including multi-modal texts


NSW

ST3-1WS-S

Plans and conducts scientific investigations to answer testable questions, and collects and summarises data to communicate conclusions


ST3-2DP-T

Plans and uses materials, tools and equipment to develop solutions for a need or opportunity


ST3-6MW-S

Explains the effect of heat on the properties and behaviour of materials


ST3-7MW-T

Explains how the properties of materials determines their use for a range of purposes


ST3-4LW-S

Examines how the environment affects the growth, survival and adaptation of living things


ST3-5LW-T

Explains how food and fibre are produced sustainably in managed environments for health and nutrition


ST3-8PW-ST

Explains how energy is transformed from one form to another


ST3-9PW-ST

Investigates the effects of increasing or decreasing the strength of a specific contact or non-contact force


ST3-10ES-S

Explains regular events in the solar system and geological events on the Earth’s surface


ST3-3DP-T

Defines problems, and designs, modifies and follows algorithms to develop solutions


ST3-11DI-T

Explains how digital systems represent data, connect together to form networks and transmit data


VIC

VCSSU077

Changes to materials can be reversible, including melting, freezing, evaporating, or irreversible, including burning and rusting


VCSSU073

Scientific understandings, discoveries and inventions are used to inform personal and community decisions and to solve problems that directly affect people’s lives


VCSIS082

With guidance, pose questions to clarify practical problems or inform a scientific investigation, and predict what the findings of an investigation might be based on previous experiences or general rules


VCSIS083

With guidance, plan appropriate investigation types to answer questions or solve problems and use equipment, technologies and materials safely, identifying potential risks


VCSIS084

Decide which variables should be changed, measured and controlled in fair tests and accurately observe, measure and record data


VCSIS085

Construct and use a range of representations, including tables and graphs, to record, represent and describe observations, patterns or relationships in data


VCSIS086

Compare data with predictions and use as evidence in developing explanations


VCSIS087

Suggest improvements to the methods used to investigate a question or solve a problem


VCSIS088

Communicate ideas and processes using evidence to develop explanations of events and phenomena and to identify simple cause-and-effect relationships


Overview

The key concepts in this unit include:
 

  • Mixtures are everywhere and can be either homogenous or heterogenous.
  • Mixtures are a physical combining of 2 or more elements in a way that is reversible.
  • Compounds are different to mixtures, because they are formed through chemical reactions and are irreversible.
  • There is a difference between a chemical and physical change, and there are five observable signs that a chemical reaction has taken place.
Learning Intention
  • We are learning that changes to materials can be reversible or irreversible.
  • We are learning that changes to materials can be reversible or irreversible.
Linked Resources & Activities
Linked Worksheets