📖 Science glossary A–Z
Child-friendly definitions with examples, pronunciation, and Chinese (中文) and Malay (Bahasa Melayu) translations where helpful.
💨 Water Vapour /WAW-ter VAY-per/ · 水蒸气 · wap air
Water that has floated away into the air — you cannot see it.
Water in the form of an invisible gas.
Example: The steam from a kettle becomes invisible water vapour. · Related: evaporation, condensation