Physical Science is one of the most important subjects for South African learners aiming for careers in engineering, medicine, technology, and the sciences. This study guide is designed to support Grade 10 and Grade 11 learners in mastering the CAPS curriculum with clear explanations, worked examples, and exam-style practice questions. The guide covers key topics including mechanics, waves and sound, electricity and magnetism, chemical bonding, reactions, and stoichiometry. Each section breaks down complex concepts into easy-to-understand language, with diagrams and step-by-step solutions that can assist learners in building confidence and improving their understanding of both Physics and Chemistry components. With mid-year exams approaching, this resource may help learners identify their weak areas, practise under timed conditions, and develop effective study habits. It is designed to complement classroom learning and can be used independently at home, making it ideal for learners in under-resourced schools or those who benefit from additional support outside the classroom.