English National Curriculum - Science
Mission Objectives
Safely conduct experiments to determine how a change in pH affects the rate of reaction of an enzyme
Collect appropriate results and use these results to calculate a mean, ignoring any anomalous results
Evaluate the results from the experiment and draw appropriate conclusions from these results
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Words and meanings to learn
rate of reaction
a measure of the breakdown of reactant or the formation of product over a unit of time.
initial rate of reaction
the start of the reaction; this is usually the fastest part of the reaction.
denature
when the enzyme's active site changes shape so it can no longer bind with the substrate and produce a product.
active site
the part of the enzyme which is responsible for binding and breaking down the substrate.
optimum pH
the pH at which an enzyme-substrate reaction works best at.
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.
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