This set of slides and accompanying worksheet with answer key is designed to support the teaching of the topic Redox Reactions for Chemistry GCE O Level 5070. The resources develop students’ understanding of oxidation and reduction through electron transfer, oxidation states, oxidising and reducing agents, and observable evidence such as colour changes. Actual questions adapted from GCE O Level past year papers are included to familiarise students with exam-style wording, command terms, and mark expectations. The slides introduce and explain key concepts with worked examples and guided questioning, while the worksheet provides structured practice and exam-focused consolidation to build confidence and examination readiness.

This set of slides and worksheet supports the teaching of States of Matter for Year 9 Chemistry (GCE O Level 5070), with a focus on distinguishing the properties of solids, liquids, and gases and describing their structure using the kinetic particle theory. Students are guided to compare the three states in terms of particle separation, arrangement, and motion, linking observable properties to particle behaviour. The resources are suitable for introducing the topic and building a strong conceptual foundation for later work on changes of state and gas behaviour.

This set of slides and accompanying worksheet with answer key included is designed to support the teaching of Effects of Temperature and Pressure on the Volumes of Gases under the topic States of Matter for Year 9 Chemistry (GCE O Level 5070) as well as for Year 9 Physics (GCE O Level ). The resources guide students to understand how changes in temperature and pressure affect gas volume, using particle theory as the explanatory framework.

Chemistry 5070 GCE O Level Diffusion in terms of kinetic particle theory as well as the effect of relative molecular mass on the rate of diffusion of gases. Includes powerpoint slides and worksheet to accompany the teaching of the topic.