📚 IB Data Booklet 2025: Your Essential Guide | IB 数据手册 2025：备考核心指南
The IB Data Booklet is not merely a set of reference pages; it is a carefully organised exam aid that can save you time and reduce slip-ups if you know how to use it. Many students treat it as a safety net, but only those who practise with it before the exam can unlock its full value.
IB 数据手册不仅仅是一组参考页，它是一个精心组织的考试辅助工具，如果你知道如何使用，它可以帮你节省时间并减少失误。许多学生把它当作安全网，但只有那些在考试前用它练习过的人才能充分发挥它的价值。
1. What Is the IB Data Booklet? | 什么是 IB 数据手册？
The IB Data Booklet is an official booklet published by the International Baccalaureate for specific Diploma Programme subjects, mainly the experimental sciences. It contains essential constants, equations, and reference tables that are needed for external assessment. It is provided to students in the examination room, so you do not need to memorise every formula or constant.
IB 数据手册是国际文凭组织为特定文凭课程科目（主要是实验科学）发布的官方小册子。它包含外部评估所需的基本常数、公式和参考表。手册在考场内提供给学生，因此你不需要记住每一个公式或常数。
Using the booklet effectively is a skill in itself. You should be familiar with its layout before the exam, because searching through it for the first time during a high-pressure paper can waste valuable minutes. Treat the booklet like a tool: the more you practise with it, the faster and more precise you become.
有效使用手册本身就是一项技能。你应该在考试前就熟悉它的排版，因为在高压考试中第一次翻找手册会浪费宝贵的几分钟。把手册当作工具：你用它练习得越多，就会变得越快、越准确。
2. Which Subjects Have a Data Booklet? | 哪些学科提供数据手册？
Not every IB subject comes with a data booklet. In the sciences, Physics and Chemistry have dedicated data booklets. Mathematics Analysis and Approaches (AA) and Mathematics Applications and Interpretation (AI) are supported by a formula booklet. Biology does not have a data booklet, so key definitions and diagrams must be learned.
并非每个 IB 学科都配有数据手册。在科学学科中，物理和化学有专门的数据手册。数学分析与方法 (AA) 和数学应用与解释 (AI) 配有公式手册。生物学科没有数据手册，因此关键定义和图解必须自己记忆。
| Subject | Booklet Type | Typical Contents |
|---|---|---|
| Physics | Data booklet | Constants, equations by topic, unit conversions, circuit symbols |
| Chemistry | Data booklet | Equations, periodic table, bond enthalpies, electrode potentials, pKa, spectral data |
| Mathematics AA/AI | Formula booklet | Algebra, functions, calculus, statistics and probability formulae |
| Biology | None | Definitions, diagrams and processes need to be memorised |
Check the specific booklet for your subject and level before the exam. Using the wrong booklet from a previous session or another subject can cause confusion, especially because page numbers and section labels may differ.
考试前请确认适用于你所选科目和级别的具体手册。使用往届或其他学科的手册可能会造成混淆，尤其是因为页码和章节标签可能不同。
3. Core Sections of the Science Data Booklets | 科学数据手册的核心板块
Physics and Chemistry data booklets follow clear section divisions. In Physics, you can expect fundamental constants (such as speed of light c, Planck constant h, gravitational constant G), equations grouped by mechanics, thermal physics, waves, electricity and magnetism, and atomic physics, plus circuit symbols and conversion factors.
物理和化学数据手册遵循清晰的章节划分。在物理中，你可以看到基本常数（如光速 c、普朗克常数 h、引力常数 G）、按力学、热学、波、电磁学和原子物理分组的公式，以及电路符号和换算因子。
In Chemistry, the booklet typically includes a periodic table, ionisation energies, bond enthalpies, standard electrode potentials, pKa values, NMR and IR absorption data, and a selection of equations such as the ideal gas law and the Gibbs free energy relation.
在化学中，手册通常包括元素周期表、电离能、键焓、标准电极电势、pKa 值、核磁共振和红外吸收数据，以及理想气体方程和吉布斯自由能关系等公式。
- Physics: constants, mechanics, thermal, waves, electricity, magnetism, atomic and nuclear.
- Chemistry: equations, periodic table, thermochemistry, electrochemistry, spectroscopy.
Familiarity with these sections is the first step to efficient retrieval. You should know, for example, that standard electrode potentials are always in the Chemistry booklet, not in Physics, and that circuit symbols belong to Physics.
熟悉这些板块是高效检索的第一步。你应该知道，例如，标准电极电势总是在化学手册中，而不是物理手册中，电路符号则属于物理手册。
4. 2025 Updates and What to Watch For | 2025 年更新要点
For the 2025 examination session, always confirm the version date printed on the front cover. IB occasionally updates the design to match the syllabus first examined
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