--- title: Soap and why washing works — the lesson's questions with trees and pragmatics · Chemistry description: The 15 test and exam questions of lesson 24 «Soap and why washing works» of the chemistry course of Mova's primary school, each with its options, Mova's choice and the right answer, every sentence with its dependency tree and pragmatics. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/chemistry/24-soap-and-why-washing-works/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [questions](https://md.mova.elamur.ai/free/en/corpora/questions/) / [Chemistry](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/) / Soap and why washing works # Soap and why washing works The 15 questions of lesson 24 «Soap and why washing works» of the chemistry course of Mova's primary school with their options, 85 sentences, every one parsed by Mova with its syntax tree and pragmatics. How the student did on them: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/chemistry/24-soap-and-why-washing-works/). - [t1](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/24-soap-and-why-washing-works/t1/) — "i just splashed my hands under the tap after the garden, that's fine yeah?" What's true? — wrong ✗ · ★★ - [t2](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/24-soap-and-why-washing-works/t2/) — Mia uses gel on muddy hands and says they're clean now. What's the catch? — right ✓ · ★★ - [t3](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/24-soap-and-why-washing-works/t3/) — Little cousin is about to put washing-up liquid in the dishwasher "to make it cleaner". What happens? — right ✓ · ★★ - [t4](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/24-soap-and-why-washing-works/t4/) — A cartoon shows a cube-shaped soap bubble floating across the sky. What would a real bubble do? — right ✓ · ★★ - [t5](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/24-soap-and-why-washing-works/t5/) — Josh says lots of foam means the washing-up liquid is working harder. What's true? — wrong ✗ · ★★ - [t6](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/24-soap-and-why-washing-works/t6/) — If you put a drop of soap behind a paper boat on a still pond, what would happen? — right ✓ · ★★ - [t7](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/24-soap-and-why-washing-works/t7/) — "my bubbles keep popping straight away". What could help? — wrong ✗ · ★★ - [t8](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/24-soap-and-why-washing-works/t8/) — Grandma's new town makes grey scum in the bath and crusty kettles. What's going on? — right ✓ · ★★ - [t9](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/24-soap-and-why-washing-works/t9/) — "ugh old-timey soap from wood ash, let's make some in the kitchen!" What's the honest reply? — right ✓ · ★★ - [t10](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/24-soap-and-why-washing-works/t10/) — Why can washing powder get an egg stain out even at 30 °C? — right ✓ · ★★ - [t11](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/24-soap-and-why-washing-works/t11/) — Hand gel left by the birthday candles. What's the problem? — right ✓ · ★★ - [e1](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/24-soap-and-why-washing-works/e1/) — Identify the feature of the soap particle by virtue of which it removes grease. — wrong ✗ · exam - [e2](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/24-soap-and-why-washing-works/e2/) — It is given that a free soap bubble invariably assumes a spherical form. Ascertain the principal reason. — right ✓ · exam - [e3](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/24-soap-and-why-washing-works/e3/) — Which of the following statements most accurately characterises alcohol hand gel? — right ✓ · exam - [e4](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/24-soap-and-why-washing-works/e4/) — Select the response consistent with the established facts concerning foam in washing-up. — right ✓ · exam - ← previous: [23. Browning apples, rotting and mould](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/23-browning-apples-rotting-and-mould/) - next →: [25. Cleaning chemicals and safety at home](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/25-cleaning-chemicals-safety/) - ↑ back to [Chemistry](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/)