--- title: Olympiad: everyday chemistry detectives ★★★ — the lesson's questions with trees and pragmatics · Chemistry description: The 15 test and exam questions of lesson 37 «Olympiad: everyday chemistry detectives ★★★» 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/37-olympiad-everyday-chemistry-detectives/) [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/) / Olympiad: everyday chemistry detective… # Olympiad: everyday chemistry detectives ★★★ The 15 questions of lesson 37 «Olympiad: everyday chemistry detectives ★★★» of the chemistry course of Mova's primary school with their options, 86 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/37-olympiad-everyday-chemistry-detectives/). - [t1](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/37-olympiad-everyday-chemistry-detectives/t1/) — «me bike's a total pile of rust, can't even ride it» - you look and find three small orange spots on the chain guard. What's really going on? — wrong ✗ · ★★★ - [t2](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/37-olympiad-everyday-chemistry-detectives/t2/) — «the kettle's got a bit of fur in it» says Dad. Inside there is a white crust as thick as a coin. What is true? — right ✓ · ★★★ - [t3](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/37-olympiad-everyday-chemistry-detectives/t3/) — Ruby reckons "rust gives you tetanus, so rusty stuff is poison." Which answer puts her right? — wrong ✗ · ★★★ - [t4](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/37-olympiad-everyday-chemistry-detectives/t4/) — A Scottish gran says: «it's a dreich day, and look, me silver egg spoons have gone black. it's the rain, aye?» What is the better explanation? — wrong ✗ · ★★★ - [t5](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/37-olympiad-everyday-chemistry-detectives/t5/) — A cartoon shows a cook throwing a bucket of water onto a burning chip pan, and the fire goes out at once. What is wrong? — wrong ✗ · ★★★ - [t6](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/37-olympiad-everyday-chemistry-detectives/t6/) — «just chuck the dead batteries in the bin innit, they're empty anyway» What is the honest reply? — right ✓ · ★★★ - [t7](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/37-olympiad-everyday-chemistry-detectives/t7/) — In Cape Town, Sipho says: "Squeeze a half-empty soda bottle before you close it and it stays fizzier, lekker trick!" Is he right? — right ✓ · ★★★ - [t8](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/37-olympiad-everyday-chemistry-detectives/t8/) — «y'all, the tyre's flat as a pancake this frosty morning, it was fine yesterday arvo» The tyre looks only a little soft. What is the best detective guess? — wrong ✗ · ★★★ - [t9](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/37-olympiad-everyday-chemistry-detectives/t9/) — «washing-up liquid in the dishwasher, what's the worst that could happen lol» — wrong ✗ · ★★★ - [t10](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/37-olympiad-everyday-chemistry-detectives/t10/) — «this bubble bath must be cleaning me heaps, look at all the foam» What is true? — right ✓ · ★★★ - [t11](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/37-olympiad-everyday-chemistry-detectives/t11/) — A helium balloon from Saturday is small and wrinkly by Wednesday, with no hole. A little kid says it is "sad". What is really happening? — wrong ✗ · ★★★ - [e1](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/37-olympiad-everyday-chemistry-detectives/e1/) — Identify the conditions under which an iron nail will rust most rapidly. — right ✓ · exam - [e2](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/37-olympiad-everyday-chemistry-detectives/e2/) — Determine which of the following objects would be attracted by a magnet. — wrong ✗ · exam - [e3](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/37-olympiad-everyday-chemistry-detectives/e3/) — A candle placed beneath an inverted jar is extinguished. Ascertain the reason. — wrong ✗ · exam - [e4](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/37-olympiad-everyday-chemistry-detectives/e4/) — State which ordering of waste practices is recommended. — wrong ✗ · exam - ← previous: [36. Olympiad: kitchen chemistry puzzles ★★★](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/36-olympiad-kitchen-chemistry-puzzles/) - ↑ back to [Chemistry](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/)