English National Curriculum - Science
Mission Objectives
Describe how electrical power is transferred from power stations to consumers using the National Grid
Explain the role of step-up and step-down transformers in transmitting electricity efficiently
Evaluate why the National Grid is an efficient system for transferring energy over long distances
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Words and meanings to learn
National Grid
a network of cables and transformers that transfers electrical power from power stations to consumers across the country
step-down transformer
a device that decreases the voltage of electricity to a safer level for domestic or business use
potential difference (voltage)
the energy transferred per unit charge in an electric circuit, measured in volts (V)
base load
the minimum level of continuous electricity demand supplied by large, efficient power stations running constantly
step-up transformer
a device that increases the voltage of electricity for efficient transmission over long distances by reducing current and energy loss
Samantha is an accomplished science educator whose current work centres on curriculum design and professional development, supporting teachers to deliver high-quality science education through evidence-informed approaches. She is a former Head of Chemistry and Sixth Form Tutor with extensive Key Stage 4 and 5 experience, and has worked as an AQA examiner, giving her valuable insight into assessment standards and what students need to succeed.
Samantha has written the complete KS4 Science curriculum, fully aligned with the AQA GCSE Science: Trilogy specification. Covering biology, chemistry and physics, the curriculum is carefully sequenced so that students build knowledge cumulatively and see clear connections between concepts across the three sciences. Drawing on her experience as an examiner and on research into effective teaching, she has designed it to embed retrieval practice, clear explanation, worked examples and the required practicals throughout, preparing students for the demands of the GCSE exams. Grounded in the realities of the classroom, the curriculum is rigorous for students and manageable for busy teachers.
In her spare time, Samantha enjoys playing the accordion with her local orchestra and has recently taken up cricket.
National grid demo set up.
Handouts
Expert film
Mission assignment film
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