Recycling, waste and plastic

Tests: 5 of 13 right · Exam: 1 of 4 right · Kind: ★ · Understood: 13 of 17 · Run: 2026-10-18, commit f3c23ea72

Lesson 88 of the world 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.

Every question of this lesson and each of its options parsed by Mova, with trees and pragmatics: the lesson's questions in the corpora.

Test 1 · ★ · wrong ✗

A class collects cans. The teacher holds a magnet near each can, and some stick. What does this show?

1. The cans that stick are steel and the others are not — ✓ the right answer · no support
2. The cans that stick are empty and the others are full — no support
3. The cans that stick are clean and the others are dirty — no support
4. The cans that stick are aluminium and the others are steel — ← Mova's choice · score 5

Why: It took the question to ask what it is done to. It chose option 4 with score 5, the only option with support. Its support: lesson 88, line 3: «At a recycling plant, machines sort the mixed rubbish. Big magnets pull out steel cans, while aluminium, which is not magnetic, is separated in other ways. Dir…», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+3); the same thing acted on «aluminium» (+2). The right option, 1, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 2 · ★ · right ✓

Which is true about plastic in nature?

1. It breaks into pieces but does not rot away — ← Mova's choice · ✓ the right answer · score 9
2. It is eaten up by hungry worms and disappears — no support
3. It rots into rich garden soil within one year — score 2
4. It slowly turns back into crude oil in the ground — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 9, against 2 for the next best. Its support: lesson 88, line 15: «Plastic breaks into tiny pieces called microplastics instead of rotting away.», reached through the remembered sentence the question matched. What matched: the same action «break» (+4); the same place «tiny pieces» (+4); the same doer «plastic» (+1). · the question and its options parsed, with trees and pragmatics

Test 3 · ★ · wrong ✗

A family wants to make less rubbish. Which change helps most?

1. Buying fewer things in plastic packaging — ✓ the right answer · no support
2. Throwing their rubbish into the river — ← Mova's choice · score 4
3. Burning their rubbish in the garden — score 4
4. Putting all their rubbish in one big bag — no support

Why: It took the question to ask who or what does it. 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 88, line 1: «Rubbish we throw away usually goes to one of three places. It can be buried in a landfill, burned in an incinerator that often makes electricity from the heat,…», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «rubbish» (+4); the same action «throw away» (+2). Against it: a different doer (counts against) (-2). The right option, 1, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 4 · ★ · right ✓

Why do recycling centres ask people to rinse yoghurt pots before recycling them?

1. Rinsing makes the pots lighter to carry — no support
2. Clean pots turn into glass much more easily later — no support
3. Dirty pots can spoil the clean recycled material — ← Mova's choice · ✓ the right answer · score 4
4. Water helps the pots rot away faster — score 0

Why: It took the question to ask why something happens (its cause). It chose option 3 with score 4, against 0 for the next best. Its support: lesson 88, line 4: «There are many kinds of plastic, and many of them are hard to recycle, so only a small share of all plastic ever made has been recycled. Plastic does not rot a…», reached through the cause of the sentence the question matched. What matched: the same action «recycle» (+4). · the question and its options parsed, with trees and pragmatics

Test 5 · ★ · right ✓

Scientists find tiny plastic pieces in snow near the North Pole, far from any city. How did they most likely get there?

1. People in the Arctic make lots of plastic — no support
2. Polar bears carry plastic bags there — no support
3. Larger plastic broke up and the bits were carried by wind and sea — ← Mova's choice · ✓ the right answer · score 4
4. Snow turns into plastic when it is very cold — no support

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 88, line 15: «Plastic breaks into tiny pieces called microplastics instead of rotting away.», reached through the option's own match among the sentences about the question's things. What matched: the same action «break» (+2); the same doer «plastic» (+2). · the question and its options parsed, with trees and pragmatics

Test 6 · ★ · wrong ✗

What would happen if a landfill took only plastic and no food waste?

1. It would give off much more methane — no support
2. It would turn into compost in a year — no support
3. It would give off much less methane — ✓ the right answer · no support
4. The plastic would rot away quickly — ← Mova's choice · score 5

Why: It took the question to ask what happens next. It chose option 4 with score 5, the only option with support. Its support: lesson 88, line 15: «Plastic breaks into tiny pieces called microplastics instead of rotting away.», reached through the option's own match among the sentences about the question's things. What matched: the same action «rot away» (+2); the same doer «plastic» (+2); the same property (+1). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 7 · ★ · wrong ✗

Why is a glass jar a good thing to recycle?

1. Its glass can be made into new jars again and again — ✓ the right answer · no support
2. Recycled glass becomes much lighter than new glass is — ← Mova's choice · score 4
3. Glass can be recycled only once or twice — score 4
4. Glass rots away quickly if it is buried — score 0

Why: It took the question to ask why something happens (its cause). 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 88, line 4: «There are many kinds of plastic, and many of them are hard to recycle, so only a small share of all plastic ever made has been recycled. Plastic does not rot a…», reached through the cause of the sentence the question matched. What matched: the same action «recycle» (+4). The right option, 1, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 8 · ★ · right ✓

An old phone stops working. What is the best thing to do with it?

1. Take it to a special electronics recycling point — ← Mova's choice · ✓ the right answer · score 10
2. Bury it in the garden — score 10
3. Throw it in the ordinary kitchen bin — score 3
4. Throw it in the paper recycling — score 3

Why: It took the question to ask what it is done to. It chose option 1 with score 10, tied with another option at 10 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 47, line 1: «Natural resources are the things people take from nature to live: water, air, soil, wood, fish, sunlight, wind, and things dug from the ground such as coal, oi…», reached through the option's own match among the sentences about the question's things. What matched: the same action «take» (+5); it fills the role the question asks for (+3); the same thing acted on «things» (+2). · the question and its options parsed, with trees and pragmatics

Test 9 · ★ · wrong ✗

Which is the right order, from what helps most to what helps least?

1. Reuse, then recycle, then reduce — ← Mova's choice · no support
2. Recycle, then reduce, then reuse — no support
3. Reduce, then reuse, then recycle — ✓ the right answer · no support
4. Recycle, then reuse, then reduce — no support

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

Test 10 · ★ · right ✓

why can't u chuck old batteries in the normal bin

1. They can catch fire and hold harmful metals — ← Mova's choice · ✓ the right answer · score 9
2. They make all the other rubbish rot much faster — no support
3. They are way too heavy for the bin lorry to lift — no support
4. They will recharge themselves and waste power — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 9, the only option with support. Its support: lesson 88, line 16: «Old batteries and electronics must not go in the ordinary bin, because they can catch fire and hold harmful metals.», reached through a sentence linked to the one the question matched. What matched: the same action «catch» (+4); the same thing acted on «fire» (+3); the same doer «batteries» (+2). · the question and its options parsed, with trees and pragmatics

Test 11 · ★ · wrong ✗

what's better, recycling stuff or just using less

1. Throwing things away saves the most — no support
2. Recycling always saves the most, way more than anything — ← Mova's choice · score 5
3. They both save exactly the same — no support
4. Reducing and reusing save more than recycling — ✓ the right answer · no support

Why: It took the question to ask which statement is true. It chose option 2 with score 5, the only option with support. Its support: lesson 88, line 10: «Recycling aluminium cans saves about 95 percent of the energy needed to make new aluminium.», reached through the same lesson line as the sentence the question matched. What matched: the same action «save» (+3); the same doer «recycling» (+3). Against it: a different thing acted on (counts against) (-1). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 12 · ★ · wrong ✗

Leo says plastic rots away in a few years like food. true?

1. Yes, plastic rots into compost quite quickly — ← Mova's choice · no support
2. No, plastic breaks into tiny microplastics instead of rotting — ✓ the right answer · no support
3. Yes, but only in a hot sunny place — no support
4. No, plastic stays whole and never breaks up — no support

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

Test 13 · ★ · wrong ✗

my sister reckons paper can be recycled forever. right?

1. Yes, paper never gets worse however many times it's recycled — ← Mova's choice · score 5
2. No, only a few times, because its fibres get shorter — ✓ the right answer · score 5
3. No, paper can never be recycled at all — score 0
4. Yes, just like glass and metal — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 5, tied with another option at 5 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 47, line 5: «So we save resources: we turn off lights and taps, sort rubbish so that paper, glass, metal and plastic can be recycled, use things again, and get energy from…», reached through the remembered sentence the question matched. What matched: the same action «recycle» (+4); the same thing acted on «paper» (+1). The right option, 2, scored 5. · the question and its options parsed, with trees and pragmatics

Exam question 1 · formal language · wrong ✗

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

1. It may be recycled only once — ← Mova's choice · no support
2. It cannot be recycled at all — no support
3. It becomes weaker with every recycling — no support
4. It may be recycled again and again without getting worse — ✓ the right answer · no support

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

Exam question 2 · formal language · wrong ✗

Identify the principal reason for which paper may be recycled only a few times.

1. Its fibres become shorter on each occasion — ✓ the right answer · score 4
2. Its ink can never be removed — no support
3. It becomes heavier on each occasion — no support
4. It turns into a kind of plastic when it is recycled — ← Mova's choice · score 5

Why: It took the question to ask which statement is true. It chose option 4 with score 5, against 4 for the next best. Its support: lesson 47, line 5: «So we save resources: we turn off lights and taps, sort rubbish so that paper, glass, metal and plastic can be recycled, use things again, and get energy from…», reached through the remembered sentence the question matched. What matched: the same action «recycle» (+4); the same thing acted on «paper» (+1). The right option, 1, scored 4. · the question and its options parsed, with trees and pragmatics

Exam question 3 · formal language · wrong ✗

Ascertain the means by which steel cans are separated at recycling plants.

1. By wind — ← Mova's choice · no support
2. By magnets — ✓ the right answer · no support
3. By hand alone — no support
4. By water — no support

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

Exam question 4 · formal language · right ✓

Select the response that is consistent with the established facts concerning the fate of plastic in the environment.

1. It rots into useful compost within a year — no support
2. It breaks into tiny pieces called microplastics instead of rotting — ← Mova's choice · ✓ the right answer · score 6
3. It turns into glass in sunlight — no support
4. It dissolves wholly in rain water — no support

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 88, line 4: «There are many kinds of plastic, and many of them are hard to recycle, so only a small share of all plastic ever made has been recycled. Plastic does not rot a…», reached through the remembered sentence the question matched. What matched: the same action «break» (+4); the same place «smaller pieces» (+4). Against it: a different doer (counts against) (-2). · the question and its options parsed, with trees and pragmatics

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/world/88-recycling-waste-plastic/