Learning objectives
Knowledge
- To demonstrate irreversible changes.
Working scientifically
- To analyse observations about rusting and use them to support a conclusion.
Success criteria
Knowledge
- I can define
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National curriculum
Science
Properties and changes
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Cross-curricular links
British values
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Before the lesson
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Lesson plan
Recap and recall
Display the Presentation: Agree or disagree? and select a volunteer to read each statement aloud. Arrange the pupils into pairs and instruct them to discuss whether they agree or disagree with each statement. Explain that they should justify their decisions using learning from previous lessons.
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Extended-mode explainer videos
How to extend your display to view the lesson page and preseantion mode simultaneously. Choose your operating system below to watch the video
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Extended-mode explainer video: For Mac
Extended-mode explainer video: For Windows
Adaptive teaching
Pupils needing extra support
Could focus on recording how easily each material ignited on the Activity: Observing burning; could use the Knowledge organiser to help them analyse the statements in the Recap and recall and answer the questions in the Attention grabber; should read the information under the video at the link: Irreversible changes instead of the Wrapping up activity.
Pupils working at greater depth
Should write their conclusion to the rusting experiment independently; should time how long each material burnt for and record this in the last column of the table on the Activity: Observing burning; could choose an extension activity relating to reversible and irreversible changes from the Resource: Stretch and challenge: Properties and changes.
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Assessing progress and understanding
Pupils with secure understanding indicated by: defining the
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Knowledge outcomes
- I can define the term irreversible change as when a material undergoes a change that cannot be easily reversed and which produces a new material or materials.
- I can identify rusting as an irreversible change and describe the conditions required (water and air/oxygen).
- I can identify burning as an irreversible change and describe the differences between how some different materials burn.
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Vocabulary definitions
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burning
An irreversible change in which a material burns to make new products.
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irreversible change
When a material undergoes a change that cannot be easily undone and which produces a new material.
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In this unit
Assessment - Science Y5/6 (A): Properties and changes
Y5/6 (A): Lesson 1: Hardness
Y5/6 (A): Lesson 2: Transparency
Y5/6 (A): Lesson 3: Conductivity
Y5/6 (A): Lesson 4: Reversible changes
Y5/6 (A): Lesson 5: Irreversible changes: Burning and rusting
Y5/6 (A): Lesson 6: Irreversible changes: Mixing
Maintained by: Kapow Primary team
Last update: 7th October, 2024
