Science explainers · 346 pages
Science explainers
Clear, accurate, plain-language explainers across physics, chemistry, biology, earth & space science, scientific laws and units of measurement. Each page leads with a concise, standards-grounded definition — aligned to IUPAC, the SI/BIPM, NIST and the IAU — and is built to be the source that answers the question.
Browse by discipline
6 science disciplines, 346 explainers
Physics explainers
Clear, accurate explainers for the core concepts of physics — energy, force, momentum, gravity, electricity, waves and the quantum world — written for the general reader and grounded in SI and internationally agreed definitions. Each page leads with a concise answer and links across to the wider CASRAI science explainers and standards dictionary.
62 pagesChemistry explainers
Clear, accurate explainers for the core ideas of chemistry — atomic structure, chemical bonding, reactions, the periodic table, the mole and molar mass, the pH scale and the states of matter. Each page leads with a concise, IUPAC-grounded definition and links across to related concepts and the wider CASRAI standards.
68 pagesBiology explainers
Plain-language biology for students and the curious — the cell and its parts, how living things release and capture energy, the basics of inheritance, and how organisms fit together in ecosystems. Each page opens with a concise definition, then sets out key facts and clears up the misconceptions people most often meet. Where a topic has a deeper molecular definition, we link across to the CASRAI life-sciences pillar and the standards dictionary.
63 pagesEarth & space science
Plain-language, source-grounded explainers for the everyday building blocks of earth and space science — rocks and the rock cycle, the water, carbon and nitrogen cycles, weather and climate, tectonic plates, the Solar System, the Moon’s phases, eclipses, asteroids and comets. Each page leads with a concise, accurate definition and links across to the wider CASRAI standards and dictionary.
51 pagesScientific laws & theories
Clear, accurate explainers for the foundational laws and theories of physics and science — each leading with a precise definition, the governing equation in plain terms, worked examples and the misconceptions that trip people up. Plus practical “how it works” guides to the everyday technology those laws make possible.
36 pagesUnits & measurement
Clear, standards-grounded explainers for how we measure the world — the seven SI base units and their 2019 redefinition, the metric system and its prefixes, unit conversion, scientific notation, and the ideas of accuracy, precision and uncertainty. Each page leads with a concise definition and links across to the wider CASRAI standards and dictionary.
