AQA GCSE Chemistry
Fundamental Ideas in Chemistry
Atoms, elements, compounds, formulae, equations and the foundations of chemistry.
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Checklist
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Notes
Teacher notes will go here later.
Top Tips
- Always refer to the frequency of successful collisions.
- For temperature, remember that successful collision frequency and activation energy are involved.
- Tangent gradient calculations are worth 5 (sometimes 6) marks - practise them!!
Additional Resources
π Specification
AQA GCSE Chemistry: Rate of Reaction
The official specification covering rate calculations, graphs and
tangents, factors affecting rate, collision theory, activation energy,
catalysts and the rates required practical.
π Topic Guide
Chemguide: Rates of Reaction
A free topic hub covering surface area, concentration, temperature,
pressure and catalysts, with explanations based on particle collisions.
π Graphs & Rates
Seneca: Plotting Reaction Rates
Free interactive practice on interpreting rate graphs and using
graphical information to compare how quickly reactions proceed.
π₯ Collision Theory
Seneca: Collision Theory
Interactive revision explaining successful collisions, activation
energy and how changes in conditions alter collision frequency
and reaction rate.
π¬ Surface Area & Graphs
Chemguide: Surface Area and Reaction Rate
Includes a laboratory video investigating marble chips and acid,
explanations using collisions, and examples of using graph slopes
and tangents to determine reaction rate.
π¬ Practical Video
RSC: Rates of Reaction Practical
Watch the sodium thiosulfate and hydrochloric acid investigation,
including the disappearing-cross method, changing concentration,
variables, graphs and evaluation.
β‘ Catalysts
Chemguide: Catalysts
Explore what catalysts are, why they are not used up, and how an
alternative reaction pathway with a lower activation energy
increases reaction rate.
π Challenge / Extend
RSC: Catalysts and the Kursk
Apply catalyst and rate ideas to the real-world case of the Kursk
submarine, investigating the catalytic decomposition of hydrogen
peroxide and evaluating experimental evidence.
π² Quiz
Generate a 10-question quiz on Metals.
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Exam Practice
Apply your knowledge to exam-style questions and past-paper material.
β Challenge
Coming Soon
Challenge questions, Grade 8β9 tasks and mastery badges can go here later.