English National Curriculum - Science
Mission Objectives
Describe how changing concentration affects the rate of reaction
Explain how increasing concentration increases the rate of reaction
Investigate the effect of increasing concentration on reaction rate
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Words and meanings to learn
collisions
when particles bump into each other; for a reaction to happen, the collisions must have enough energy, called successful collisions
activation energy
the minimum amount of energy that particles need to successfully react when they collide
concentration
the amount of a substance (reactant) in a certain volume of solution
rate of reaction
how quickly a reaction takes place; it can be measured by how fast reactants are used up or how quickly products are formed
variable
something that can change in an experiment; it could be something you change on purpose (independent variable), something you measure (dependent variable), or something you keep the same (control variable)
Samantha is an accomplished science educator with over 15 years of leadership experience and a strong background in scientific analysis. She has a proven record of leading departments effectively, improving practice, and working collaboratively with stakeholders.
In her current work, Samantha embeds evidence-informed pedagogical principles such as retrieval practice, clear modelling, and effective sequencing to support high-quality curriculum design and professional development. She draws on assessment insight and common misconceptions to help teachers secure strong student understanding.
She is a former Head of Chemistry and Sixth Form Tutor at Ilkley Grammar School, with extensive Key Stage 4 and 5 experience, and an AQA examiner, giving her valuable insight into assessment standards and exam requirements.
In her spare time, Samantha enjoys playing the accordion with her local orchestra and has recently taken up cricket.
RP 1:
RP2: Disappearing X with sodium thiosulfate
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