Chemistry Paper 1
Relative formula mass
Quantitative Chemistry training before the targeted original question drill.
Adaptive teaching card
Make it concrete
Analogy
Relative formula mass 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
Relative formula mass sits inside Quantitative Chemistry, 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 relative formula mass.
For a longer answer, start with particles or bonding, then connect that to the observation or calculation.