Chemistry Paper 2
Collision theory
Rates and Equilibrium training before the targeted original question drill.
Adaptive teaching card
Make it concrete
Analogy
Collision theory is like changing a recipe: the particles, amounts and conditions decide what product you can make.
Why now: An analogy helps when the definition feels abstract.
Do this: Match each part of the analogy to the science idea.
Learn it
Collision theory sits inside Rates and Equilibrium, so learn the core definition and the exam example that usually comes with it.
Focus on the particles, bonds, energy change or test result that explains what happens when revising collision theory.
For a longer answer, start with particles or bonding, then connect that to the observation or calculation.