| DOWNLOAD ALL | | |  9.1 Common acids and alkalis | | | | 9.2 Acid-alkali indicators and pH scale | | | | 9.3 Neutralization | | | | 9.4 Corrosive nature of acids | | | | 9.5 Potential hazards related to the use of acids and alkalis | | | | Unit end | | | | Download all (Bilingual version) | | |
| 2B (Reprinted with minor amendments) | | |
| Unit 9 (Coursebook) | | | | DOWNLOAD ALL | | | | Unit 9 (Assignment Book RMA version) | | | | DOWNLOAD ALL | | | | Unit 9 (Assignment Book Updated version) | | | | DOWNLOAD ALL | | |
| Unit 9 (Coursebook) | | | | DOWNLOAD ALL | | | | Unit 9 (Assignment Book RMA version) | | | | DOWNLOAD ALL | | | | Unit 9 (Assignment Book Updated version) | | | | DOWNLOAD ALL | | |
| Unit 9 (Assignment Book RMA version) | | | | DOWNLOAD ALL | | | | Unit 9 (Assignment Book Updated version) | | | | DOWNLOAD ALL | | |
| Corrigenda (Reprinted with minor amendments in 2023) | | | | Corrigenda (April 2021) | | | | Corrigenda (March 2019) | | | | Corrigenda (June 2018) | | | | List of Amendments (Reprinted with minor amendments) (June 2023) | | | | List of Amendments (2023 Updated Version) (June 2023) | | | | List of Amendments (April 2019) | | |
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| New Multiple-choice Questions Worksheets (Units 2, 3, 5, 7, 9, 12 and 13) | | | | | | Data Processing Questions Worksheets (Units 2, 3, 5, 7, 9, 12 and 13) | | | | | | New Multiple-choice Questions Worksheet — Self-learning Materials (For Teachers) | | | | | | New Multiple-choice Questions Worksheet — Self-learning Materials (For Students) | | | | | | Data Processing Questions Worksheet (For Teachers) | | | | | | Data Processing Questions Worksheet (For Students) | | | | |
| Using a data-logger (Related to p.24) SPS: PA | | | | Classifying substances into acidic, alkaline and neutral (Related to p.28) SPS: OB, CS | | | | Interpreting pH curves (Related to p.33) SPS: IF | | | | Writing word equations (Related to p.40, 48, 52) SPS: CM | | | | DOWNLOAD ALL | | |
| Key Steps of Scientific Investigation | | | | Scientific Investigation Training Programme | | |
| Experiment 9.2 Classifying solutions as acidic, alkaline or neutral Level 1 | | | | Experiment 9.3 Using universal indicator solution to find the pH values of different solutions Level 1 | | | | Experiment 9.3 Using universal indicator solution to find the pH values of different solutions Level 3 | | | | Experiment 9.6 Studying the change of pH value during neutralization Level 1 | | | | Experiment 9.7 Are there any new substances formed during neutralization? Level 1 | | | | Experiment 9.8 Is mass conserved in neutralization? Level 1 | | | | Experiment 9.9 Reactions between acids and metals Level 1 | | | | Experiment 9.10 Reactions between acids and building materials Level 1 | | | | DOWNLOAD ALL | | |
| Science English Basics | | | | Unit 9 | | | | DOWNLOAD ALL | | |
| Device that uses sweat to generate electricity（11/2021） COMPUTER SCIENCE | | | | Days of strong humid heat are on the rise（08/2020） ENVIRONMENT | | | | Governments are fighting large swarms of locusts（08/2020） ENVIRONMENT | | | | The Australia's bushfires brought huge damages to the wildlife（04/2020） ENVIRONMENT | | |
| Reusing hard disk and Replacing it with DNA | | | | Household project: Make your home 'smart' using IoT and IFTTT | | | | Detection in daily life: Using Google Science Journal and ChemEye | | |
| Travel with Aristo — Japan | | |
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