---
title: Recycling: giving materials a second life — how Mova does on the tests · Chemistry
description: Lesson 32 of the chemistry course of Mova's primary school: 7 of 11 tests right, exam 3 of 4, every question with the options, the student's choice, the right answer and why it chose.
---

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# Recycling: giving materials a second life

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**Tests:** 7 of 11 right · **Exam:** 3 of 4 right · **Kind:** ★ · **Understood:** 9 of 15 · **Run:** 2026-10-18, commit `f3c23ea72`

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Lesson 32 of the chemistry course of Mova's primary school, as Mova's small model took its tests: it had read this lesson and the ones before it and learned from their exercises. Each test shows the options in the order the student saw them, its choice, the right answer, the score of every option and why it chose. The lesson itself, sentence by sentence with trees and pragmatics: [the lesson in the corpora](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/32-recycling-second-life/).

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Every question of this lesson and each of its options parsed by Mova, with trees and pragmatics: [the lesson's questions in the corpora](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/32-recycling-second-life/).

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### Test 1 · ★ · wrong ✗ {#t1}

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Leo: "recycling's the best, so it doesn't matter how much stuff we buy". What's true?

- **1.** Buying more helps the recyclers — **← Mova's choice** · no support
- **2.** Recycling is worse than landfill — no support
- **3.** Using less is better than recycling — **✓ the right answer** · no support
- **4.** He's right, recycling uses no energy — no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/32-recycling-second-life/t1/)

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### Test 2 · ★ · right ✓ {#t2}

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"just chuck the dead batteries in the normal bin, who cares". What could happen?

- **1.** They would turn into compost — score 3
- **2.** Nothing, they are completely empty and quite safe — no support
- **3.** They could start a fire in the bin lorry — **← Mova's choice** · **✓ the right answer** · score 8
- **4.** They would charge up again — score 3

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**Why:** It took the question to ask what happens next. It chose option 3 with score 8, against 3 for the next best. Its support: lesson 32, line 11: «Batteries go in special collection boxes, never ordinary bins: they contain metals that harm nature if they leak and can be recovered, and batteries in bins ca…», reached through the same lesson line as the sentence the question matched. What matched: the same action «start» (+3); the same doer «batteries» (+3); the same thing acted on «fires» (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/32-recycling-second-life/t2/)

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### Test 3 · ★ · right ✓ {#t3}

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If everyone threw greasy food tubs into the paper bin, what would happen?

- **1.** Paper would recycle faster — no support
- **2.** Loads of paper could be spoiled — **← Mova's choice** · **✓ the right answer** · score 6
- **3.** The grease would clean the paper — no support
- **4.** The tubs would turn to paper — no support

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**Why:** It took the question to ask which statement is true. It chose option 2 with score 6, the only option with support. Its support: lesson 32, line 5: «Each recycling bin collects a different material, because materials are recycled in different ways; dirty or mixed rubbish can spoil a whole load.», reached through the same lesson line as the sentence the question matched. What matched: the same action «spoil» (+4); the same thing acted on «whole load» (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/32-recycling-second-life/t3/)

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### Test 4 · ★ · wrong ✗ {#t4}

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Grandad says a can thrown away is just a can. What could it become if recycled?

- **1.** Nothing, cans cannot be reused — **← Mova's choice** · no support
- **2.** A glass bottle in a year — no support
- **3.** A new tree in a forest — no support
- **4.** A new can in about two months — **✓ the right answer** · no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/32-recycling-second-life/t4/)

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### Test 5 · ★ · right ✓ {#t5}

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A cartoon says landfill rubbish vanishes into the ground in a day. What really happens?

- **1.** It rots slowly and makes methane — **← Mova's choice** · **✓ the right answer** · score 7
- **2.** It is eaten by moles in a day — no support
- **3.** It melts into oil at once — no support
- **4.** It turns into flowers by morning — no support

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**Why:** It took the question to ask which statement is true. It chose option 1 with score 7, the only option with support. Its support: lesson 32, line 15: «In landfill, rubbish rots without air and bacteria make methane, a gas that warms the planet; some landfills collect it to make electricity.», reached through the remembered sentence the question matched. What matched: the same action «rot» (+4); the same doer «rubbish» (+3). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/32-recycling-second-life/t5/)

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### Test 6 · ★ · right ✓ {#t6}

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Your fleece jacket label says "made from recycled bottles". How is that possible?

- **1.** Bottles are cut up and sewn together — no support
- **2.** It is a trick, bottles cannot be reused — no support
- **3.** Bottles are melted and spun into threads — **← Mova's choice** · **✓ the right answer** · score 4
- **4.** Bottles are soaked and become wool — no support

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**Why:** It took the question to ask what something is like. It chose option 3 with score 4, the only option with support. Its support: lesson 32, line 12: «Plastic bottles can be melted and spun into fibres for fleece jackets; a jacket is often said to take about 25 bottles.», reached through the option's own match among the sentences about the question's things. What matched: the same action «melt» (+2); the same thing acted on «plastic bottles» (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/32-recycling-second-life/t6/)

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### Test 7 · ★ · right ✓ {#t7}

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"old phone in the drawer's just junk mate". What's true?

- **1.** It is only plastic inside, nothing useful — no support
- **2.** It holds metals worth recovering, even gold — **← Mova's choice** · **✓ the right answer** · score 1
- **3.** It is worth more if you keep it in the drawer — no support
- **4.** It will rot away in a few years — no support

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**Why:** It took the question to ask which statement is true. It chose option 2 with score 1, the only option with support. Its support: lesson 32, line 13: «Old phones contain small amounts of gold, silver and copper; a tonne of old phones holds far more gold than a tonne of rock from a gold mine.», reached through the option's own match among the sentences about the question's things. What matched: the same action «contain» (+1); the same doer «old phones» (+1). Against it: a different thing acted on (counts against) (-1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/32-recycling-second-life/t7/)

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### Test 8 · ★ · right ✓ {#t8}

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If paper could be recycled forever, why do we still need new wood pulp?

- **1.** Wood pulp is the only real paper — no support
- **2.** Fibres get too short after a few times — **← Mova's choice** · **✓ the right answer** · score 9
- **3.** Old paper turns to ink — score 4
- **4.** New trees make paper whiter — score 4

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**Why:** It took the question to ask why something happens (its cause). It chose option 2 with score 9, against 4 for the next best. Its support: lesson 32, line 8: «Paper is soaked, mashed into pulp and pressed into new paper; its fibres get shorter each time, so paper can be recycled only a few times.», reached through the cause of the sentence the question matched. What matched: the same doer «fibres» (+4); the same property (+3); the same light verb (be, have, do, get, go) (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/32-recycling-second-life/t8/)

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### Test 9 · ★ · wrong ✗ {#t9}

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"chuck the apple core in the compost, yeah?" What happens to it there?

- **1.** It makes the compost poisonous — **← Mova's choice** · no support
- **2.** It turns into a tree straight away, roots and all — no support
- **3.** Microbes turn it into food for plants — **✓ the right answer** · no support
- **4.** It stays an apple core forever — no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/32-recycling-second-life/t9/)

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### Test 10 · ★ · wrong ✗ {#t10}

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Mia's mum gives her old school uniform to a younger girl. Which step is this?

- **1.** Recycle — **← Mova's choice** · no support
- **2.** Landfill — no support
- **3.** Compost — no support
- **4.** Reuse — **✓ the right answer** · no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/32-recycling-second-life/t10/)

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### Test 11 · ★ · right ✓ {#t11}

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Which bin should a clean empty glass jam jar go in?

- **1.** The glass recycling bin — **← Mova's choice** · **✓ the right answer** · no support
- **2.** The garden waste bin — no support
- **3.** The food scraps bin — no support
- **4.** The battery box — no support

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**Why:** Nothing it remembers matched the question, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/32-recycling-second-life/t11/)

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### Exam question 1 · formal language · right ✓ {#e1}

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Identify the order of preference expressed in the principle "reduce, reuse, recycle".

- **1.** All three are of strictly equal merit — no support
- **2.** Reduction first, reuse second and recycling third — **← Mova's choice** · **✓ the right answer** · score 4
- **3.** Recycling first, reuse second and reduction third — score 4
- **4.** Reuse first, recycling second and reduction third — score 4

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**Why:** It took the question to ask which statement is true. It chose option 2 with score 4, tied with another option at 4 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 32, line 14: «The order is reduce first, reuse second and recycle third, because recycling still uses energy; a reusable bottle can replace hundreds of throwaway ones.», reached through the remembered sentence the question matched. What matched: the same action «reuse» (+4); the same property (+2). Against it: a different doer (counts against) (-2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/32-recycling-second-life/e1/)

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### Exam question 2 · formal language · wrong ✗ {#e2}

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Which of the following statements most accurately characterises the recycling of aluminium?

- **1.** It requires more energy than production from ore — **← Mova's choice** · score 6
- **2.** It can be performed only once — no support
- **3.** It requires far less energy than production from ore — **✓ the right answer** · score 6
- **4.** It converts the metal into glass — no support

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**Why:** It took the question to ask who or what does it. It chose option 1 with score 6, tied with another option at 6 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 32, line 14: «The order is reduce first, reuse second and recycle third, because recycling still uses energy; a reusable bottle can replace hundreds of throwaway ones.», reached through the option's own match among the sentences about the question's things. What matched: it fills the role the question asks for (+3); the same doer «recycling» (+2); the same thing acted on «energy» (+2). Against it: a different action (counts against) (-1). The right option, 3, scored 6. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/32-recycling-second-life/e2/)

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### Exam question 3 · formal language · right ✓ {#e3}

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It is given that refuse is deposited in a landfill site. Select the response that is consistent with the established facts.

- **1.** It decomposes slowly and emits methane — **← Mova's choice** · **✓ the right answer** · no support
- **2.** It emits no gas whatsoever — no support
- **3.** It disappears entirely within days — no support
- **4.** It is spontaneously converted into compost — no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/32-recycling-second-life/e3/)

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### Exam question 4 · formal language · right ✓ {#e4}

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Ascertain the principal reason for which spent batteries are excluded from general refuse.

- **1.** They emit pleasant odours — no support
- **2.** They may leak harmful metals and ignite fires — **← Mova's choice** · **✓ the right answer** · score 2
- **3.** They regain their charge when buried — score 2
- **4.** They are excessively heavy for collection — no support

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**Why:** It took the question to ask which statement is true. It chose option 2 with score 2, tied with another option at 2 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 32, line 11: «Batteries go in special collection boxes, never ordinary bins: they contain metals that harm nature if they leak and can be recovered, and batteries in bins ca…», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «metals» (+2); the same doer «batteries» (+1). Against it: a different action (counts against) (-1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/32-recycling-second-life/e4/)

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- ← previous: [31. Metals and what they're good for](https://md.mova.elamur.ai/free/en/school-run/chemistry/31-metals-what-theyre-good-for/)
- next →: [33. The air we breathe](https://md.mova.elamur.ai/free/en/school-run/chemistry/33-the-air-we-breathe/)
- ↑ back to [Chemistry](https://md.mova.elamur.ai/free/en/school-run/chemistry/)