Solids, liquids and gases

Tests: 8 of 13 right · Exam: 1 of 4 right · Kind: plain · Understood: 9 of 17 · Run: 2026-10-18, commit f3c23ea72

Lesson 11 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 · right ✓

You blow up a balloon. What is inside it that makes it fat?

1. Only water from your breath — no support
2. Only the warmth from your body — no support
3. Air, a gas that takes up space — ← Mova's choice · ✓ the right answer · score 4
4. Nothing at all, it is empty — no support

Why: It took the question to ask which statement is true. It chose option 3 with score 4, the only option with support. Its support: lesson 11, line 1: «Everything around us is made of matter: anything that has mass and takes up space, even the air.», reached through the same lesson line as the sentence the question matched. What matched: the same action «take up» (+2); the same thing acted on «space» (+2). · the question and its options parsed, with trees and pragmatics

Test 2 · wrong ✗

A full bottle of water is poured into an empty bottle of another shape. Which is true?

1. There is less water because the shape changed — ← Mova's choice · no support
2. Part of the water has turned to gas — no support
3. There is more water in the wider bottle — no support
4. The amount of water stays the same — ✓ 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

Test 3 · wrong ✗

Why can a gas be squeezed but a solid hardly at all?

1. Gas particles are softer than solid ones — ← Mova's choice · no support
2. Gas particles have lots of space between them — ✓ the right answer · no support
3. Solid particles are much bigger than gas ones — no support
4. Gases have no particles in them — 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 4 · wrong ✗

Which list has one solid, one liquid and one gas?

1. Vinegar, oil, oxygen — ← Mova's choice · no support
2. Chalk, vinegar, oxygen — ✓ the right answer · no support
3. Chalk, sugar, oxygen — no support
4. Chalk, ice, olive oil — 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 5 · wrong ✗

Someone opens a bottle of perfume in a corner, and soon the whole room smells of it. Why?

1. The perfume turns into a solid powder — ← Mova's choice · no support
2. The room gets warmer from the perfume — no support
3. The perfume gas spreads out to fill the room — ✓ the right answer · no support
4. The perfume stays near the bottle — no support

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

Test 6 · wrong ✗

Which is true about a block of ice?

1. Its particles are completely still — ← Mova's choice · no support
2. It has no particles until it melts — no support
3. Its particles are much farther apart than they are in a gas — no support
4. Its particles keep jiggling even though it is solid — ✓ the right answer · no support

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

Test 7 · right ✓

A jelly wobbles but keeps its shape on a plate. Which state is it closest to?

1. A solid — ← Mova's choice · ✓ the right answer · score 6
2. A liquid — no support
3. It changes state every time it wobbles — no support
4. A gas — no support

Why: It took the question to ask who or what does it. It chose option 1 with score 6, the only option with support. Its support: lesson 11, line 3: «In a solid the particles are packed tightly and only jiggle in place, so a solid keeps its own shape.», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+4); the same doer «solid» (+2). · the question and its options parsed, with trees and pragmatics

Test 8 · right ✓

What happens to the particles of hot soup as it cools?

1. They stop moving all at once — score 8
2. They shrink to half their size — no support
3. They move more slowly — ← Mova's choice · ✓ the right answer · score 10
4. They become a different substance — no support

Why: It took the question to ask which statement is true. It chose option 3 with score 10, against 8 for the next best. Its support: lesson 11, line 16: «Heating makes particles move faster; cooling makes them move more slowly.», reached through the remembered sentence the question matched. What matched: the same action «move» (+4); the same doer «particles» (+4); the same property (+2). · the question and its options parsed, with trees and pragmatics

Test 9 · right ✓

Which can fill a whole empty room on its own?

1. A liquid — no support
2. A solid — no support
3. Any of them, if you wait — no support
4. A gas — ← Mova's choice · ✓ the right answer · score 8

Why: It took the question to ask who or what does it. It chose option 4 with score 8, the only option with support. Its support: lesson 11, line 5: «In a gas the particles are far apart and fly about fast, so a gas spreads out to fill any container it is in.», reached through the remembered sentence the question matched. What matched: the same action «fill» (+4); it fills the role the question asks for (+4); the same doer «gas» (+2). Against it: a different thing acted on (counts against) (-2). · the question and its options parsed, with trees and pragmatics

Test 10 · right ✓

why's the juice go flat in the glass n not stay in a carton shape

1. Liquids have no volume of their own — no support
2. The glass squeezes it into a new shape — no support
3. Juice is a solid with a soft shape — no support
4. Liquids take the shape of their container — ← Mova's choice · ✓ the right answer · score 6

Why: It took the question to ask which statement is true. It chose option 4 with score 6, the only option with support. Its support: lesson 11, line 8: «A liquid has a fixed volume but takes the shape of its container.», reached through the option's own match among the sentences about the question's things. What matched: the same action «take» (+2); the same doer «liquid» (+2); the same thing acted on «shape» (+2). · the question and its options parsed, with trees and pragmatics

Test 11 · right ✓

can u squash air in a syringe if u block the end

1. Yes, gases can be squashed into a smaller space — ← Mova's choice · ✓ the right answer · score 12
2. Only if the air is warm — no support
3. No, only water can be squashed — no support
4. No, air can't be squashed at all, it just pushes back — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 12, the only option with support. Its support: lesson 11, line 10: «Gases can be squashed into a smaller space much more easily than solids or liquids.», reached through the remembered sentence the question matched. What matched: the same action «squash» (+4); the same thing acted on «gases» (+4); the same place «smaller space» (+4). · the question and its options parsed, with trees and pragmatics

Test 12 · right ✓

Tom says air weighs nothing cos you can't see it. true?

1. No, air has mass and takes up space — ← Mova's choice · ✓ the right answer · score 8
2. Yes, air only weighs something when it's wet — no support
3. Yes, invisible things have no mass — no support
4. No, but it only takes up space when it's moving — score 8

Why: It took the question to ask which statement is true. It chose option 1 with score 8, tied with another option at 8 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 11, line 1: «Everything around us is made of matter: anything that has mass and takes up space, even the air.», reached through the remembered sentence the question matched. What matched: the same action «take up» (+4); the same thing acted on «space» (+4). · the question and its options parsed, with trees and pragmatics

Test 13 · right ✓

Leo reckons sand's a liquid cos you can pour it. right?

1. No, each grain is a tiny solid with its own shape — ← Mova's choice · ✓ the right answer · score 6
2. No, sand is a gas because it blows away — no support
3. Yes, anything you can pour must be a liquid, like water — no support
4. Yes, sand is a liquid that is very dry — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 6, the only option with support. Its support: lesson 11, line 14: «Sand and sugar can be poured, but each grain is a tiny solid with its own shape.», reached through the same lesson line as the sentence the question matched. What matched: the same doer «grain» (+2); the same circumstance (+2); the same property (+1); the same light verb (be, have, do, get, go) (+1). · the question and its options parsed, with trees and pragmatics

Exam question 1 · formal language · right ✓

Which of the following statements most accurately characterises a liquid?

1. It possesses a fixed volume but assumes the shape of its container — ← Mova's choice · ✓ the right answer · score 11
2. It possesses a fixed shape but no fixed volume — score 11
3. It possesses neither a fixed shape nor a fixed volume, but expands freely — score 11
4. It possesses a fixed shape and a fixed volume — score 11

Why: It took the question to ask who or what does it. It chose option 1 with score 11, tied with another option at 11 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 11, line 8: «A liquid has a fixed volume but takes the shape of its container.», 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 (+5); the same doer «liquid» (+4); the same thing acted on «fixed volume» (+2). · the question and its options parsed, with trees and pragmatics

Exam question 2 · formal language · wrong ✗

Identify, from among the following, the state of matter most readily compressed.

1. A solid — ← Mova's choice · no support
2. All states are compressed equally — no support
3. A gas — ✓ the right answer · no support
4. A liquid — 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 3 · formal language · wrong ✗

Select the response that is consistent with the established facts concerning water vapour.

1. It is the white cloud issuing from a kettle — ← Mova's choice · no support
2. It is a liquid of reduced density — no support
3. It is water in the gaseous state and is invisible — ✓ the right answer · no support
4. It is a solid composed of small crystals — 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 · wrong ✗

Determine the effect of heating upon the constituent particles of a substance.

1. They become larger in size — ← Mova's choice · no support
2. They cease to move entirely — no support
3. They move more slowly — no support
4. They move more rapidly — ✓ the right answer · no support

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

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/world/11-solids-liquids-gases/