化学是中心科学。它涉及构成各种形式物质的原子和分子的组成，结构和行为。在原子层面上理解世界对于科学的所有领域都是必不可少的。化学相互联系，并有助于医学，地质学，材料科学，分子物理学，生物学和天文学的发展。化学在一个极端与生物科学（生物化学领域）融合在一起，而在另一端又与物理学（物理化学和化学物理学）融合，这一事实凸显了它在科学中的核心作用。化学推动了现代社会的进步，并在解决诸如能源可持续性，食品供应，健康和环境等重大全球挑战中发挥着重要作用。每天，我们都使用由实验化学家开发的产品，例如塑料，织物，汽油和药
Chemistry is the central science. It deals with the composition, structure, and behaviour of the atoms and molecules that make up all forms of matter. Understanding the world at an atomic level is essential to all areas of science. Chemistry interlinks and contributes to medicine, geology, materials science, molecular physics, biology, and astronomy.<br><br>Its central role in science is emphasised by the fact that Chemistry merges with Biological Sciences (the field of biochemistry) at one extreme, and with Physics (physical chemistry and chemical physics) at the other.<br><br>Chemistry propels advances in modern society and has an important role to play in solving major global challenges such as energy sustainability, food supply, health, and the environment. Every day, we utilise products developed by experimental chemists, such as plastics, fabrics, petrol, and pharmaceuticals.