Chemistry Paper 1
Bond energies
Energy Changes training before the targeted original question drill.
Adaptive teaching card
Make it concrete
Analogy
Bond energies 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
Breaking bonds requires energy.
Making bonds releases energy.
Overall energy change depends on the balance between energy taken in and released.