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Summary Physical sciences grade 12

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2024/2025 Written for academic year
Institution 12th Grade
Course Physical Sciences
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This comprehensive, CAPS-aligned Grade 12 Physical Sciences Study Guide focuses on the topic of Chemical Change – Energy and Chemical Reactions. Perfect for exam preparation, this guide breaks down complex concepts into easy-to-understand summaries, definitions, diagrams, and worked examples. It also includes exam-style questions with model answers to help you test your understanding. What’s Included: Clear definitions of key concepts (exothermic, endothermic, activation energy) Step-by-step breakdown of types of chemical reactions Easy-to-follow explanations of energy changes during reactions Energy profile diagrams (theory explained) Comparison tables (Exothermic vs Endothermic) Real exam-style questions with answers Quick summaries for last-minute revision Bonus exam tips to help you maximise marks Perfect for: Grade 12 Physical Sciences students Learners preparing for tests and final exams Anyone needing a clear, structured Chemistry summary

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Grade 12 Physical Sciences Study Guide

Topic: Chemical Change - Energy and Chemical Reactions

Curriculum: CAPS-Aligned



Table of Contents

1. Introduction

2. Key Concepts & Definitions

3. Types of Chemical Reactions

4. Energy Changes in Reactions

5. Energy Profile Diagrams

6. Exothermic vs Endothermic Reactions

7. Worked Examples

8. Common Exam Questions & Answers

9. Quick Summary of Key Points

10. Bonus Exam Tips



1. Introduction

This study guide covers essential content for the Chemical Change section of Grade 12 Physical

Sciences, focusing on energy changes during chemical reactions. It explains concepts, provides

examples, and includes exam-style questions to help you prepare effectively.



2. Key Concepts & Definitions

Chemical Change: A process where one or more substances are transformed into new substances.

Physical Change: A change in appearance without altering the chemical structure.

System: The part of the reaction being studied (usually the reactants and products).

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