Learning objectives
Knowledge
- To investigate how voltage affects bulb brightness.
Working scientifically
- To plan an enquiry.
Success criteria
Knowledge
- I can describe
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National curriculum
Science
Electricity
Pupils should be
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Cross-curricular links
English
Spoken language
Pupils should
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Before the lesson
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Lesson plan
Recap and recall
Display the Presentation: Discussing batteries and ask the children to decide in pairs which statements they agree and disagree with.
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Extended-mode explainer videos
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Adaptive teaching
Pupils needing extra support
Could watch the Pupil video: Investigating bulb brightness and voltage as a pre-teaching opportunity or to help support them during the experiment to complete the method; should use the Activity: Investigating bulb brightness and voltage: support version to help them identify variables and construct a plan for the enquiry.
Pupils working at greater depth
Could use their own method of reducing background light when taking measurements of bulb brightness in their circuit; should plan an experiment to measure the effect of changing the voltage on motor function, considering the measured and controlled variables; could choose an extension activity relating to circuits and bulb brightness from the Resource: Stretch and challenge: Circuits, batteries and switches.
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Assessing progress and understanding
Pupils with secure understanding indicated by: describing that voltage can be changed
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Knowledge outcomes
- I can describe that using more cells in a circuit increases the voltage.
- I can describe that the higher the voltage (or the more cells), the greater the bulb brightness.
- I can use this relationship to make predictions with other components, such as a higher voltage causing a louder buzzer or a faster motor.
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Vocabulary definitions
-
battery
A portable power supply made up of more than one cell.
-
cell
A single power source that is portable.
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In this unit
Maintained by: Kapow Primary team
Last update: 11th December, 2024
