A complete, fully differentiated lesson for AQA GCSE Chemistry – C7.4 Bond Energy Calculations.

This resource provides a clear, step-by-step approach to using bond energies to calculate overall energy changes in chemical reactions, making a traditionally challenging topic simple, structured, and accessible for all learners.

Ideal for Year 10–11, first teaching, revision, or intervention, every activity is carefully scaffolded, includes full answers, and is aligned exactly to the AQA specification.

What’s Included

Fully Editable PowerPoint (25–35 slides)
Covers all required C7.4 content:

• Recap: breaking bonds vs making bonds
• Why bond breaking is endothermic
• Why bond making is exothermic
• How to use bond energy tables correctly
• Step-by-step worked calculation examples
• Common exam mistakes and misconceptions
• Guided practice questions
• Higher-tier challenge questions
• AfL checks throughout

Student Worksheet Pack

• Key word fill-in task
• Matching activity (endothermic / exothermic and bond processes)
• Bond energy calculation worksheets (easy → medium → hard)
• Scaffolded examples with structured working-out boxes
• Higher-tier multi-step calculation questions
• Full answer sheet included
• Extension challenge: Is the reaction overall exothermic or endothermic?

Exam-Style Question Set

• Multiple-choice questions
• 2–6 mark structured questions
• Bond energy table interpretation
• Error-spotting task (identify and correct incorrect calculations)
• Fully written mark scheme

Learning Objectives
Students will be able to:

• Use bond energy tables to calculate energy needed to break bonds
• Calculate energy released when bonds are formed
• Calculate overall energy change using:
  Energy change = energy in – energy out
• Determine whether reactions are exothermic or endothermic
• Apply calculations confidently to exam-style questions with full working

Perfect For

• AQA GCSE Chemistry (easy to adapt for OCR / Edexcel)
• First teaching
• Revision lessons
• Intervention groups
• Cover work
• Homework or independent study

Format
PPTX PowerPoint | DOCX / PDF Worksheets | Full Answers
Fully editable | Print-friendly