---
title: Why do bubbles in a glass of fizzy drink always rise? — Solids, liquids and gases · tree and pragmatics
description: Why do bubbles in a glass of fizzy drink always rise? Test 7 of lesson 4 «Solids, liquids and gases» of the chemistry course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was right.
---

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# Test 7 · Solids, liquids and gases

<!-- .ven lang=en -->
Why do bubbles in a glass of fizzy drink always rise?

<!-- .vintro -->
**Mova's choice:** option 3 · **The right answer:** option 3 · right ✓ · **Who acts:** bubbles · **What happens:** rise

<!-- .vabout -->
This is test 7 of lesson 4 «Solids, liquids and gases» of the chemistry course of Mova's primary school. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/chemistry/4-solids-liquids-and-gases/#t7).

## The question {#question}

```conllu
# sent_id = question:chemistry:4-solids-liquids-and-gases:t7:1
# text = Why do bubbles in a glass of fizzy drink always rise?
1	Why	why	ADV	WRB	PronType=Int	11	advmod	_	_
2	do	do	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	11	aux	_	_
3	bubbles	bubble	NOUN	NNS	Number=Plur	11	nsubj	_	_
4	in	in	ADP	IN	_	6	case	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
6	glass	glass	NOUN	NN	Number=Sing	3	nmod	_	_
7	of	of	ADP	IN	_	9	case	_	_
8	fizzy	fizzy	ADJ	JJ	Degree=Pos	9	amod	_	_
9	drink	drink	NOUN	NN	Number=Sing	6	nmod	_	_
10	always	always	ADV	RB	PronType=Tot	11	advmod	_	_
11	rise	rise	VERB	VB	VerbForm=Inf	0	root	_	SpaceAfter=No
12	?	?	PUNCT	.	_	11	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **rise** | present · do-support | bubbles in a glass of fizzy drink |  |  |  |  | always *property* | vn assuming\_position-50 «NP V»: agent=Agent |

<!-- .note -->
One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
Bubbles are pulled up by the light shining down on the glass

```conllu
# sent_id = question:chemistry:4-solids-liquids-and-gases:t7:o1:1
# text = Bubbles are pulled up by the light shining down on the glass
1	Bubbles	bubble	NOUN	NNS	Number=Plur	3	nsubj:pass	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	pulled	pull	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	up	up	ADP	RP	_	3	compound:prt	_	_
5	by	by	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	light	light	NOUN	NN	Number=Sing	3	obl	_	_
8	shining	shine	VERB	VBG	Tense=Pres|VerbForm=Part	3	advcl	_	_
9	down	down	ADV	RB	_	8	advmod	_	_
10	on	on	ADP	IN	_	12	case	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	glass	glass	NOUN	NN	Number=Sing	8	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **pull up** | present · passive | the light | Bubbles |  |  |  |  | vn push-12-1 «NP V NP»: agent=Agent subject=Theme |
| 2 | **shine down** | gerund | the light *not said here* |  |  | the glass |  | down *property* | vn light\_emission-43.1 «NP V PP.location»: agent=Theme on glass=Location |

### Option 2 {#o2}

<!-- .ven lang=en -->
The glass pushes them up from the sides

```conllu
# sent_id = question:chemistry:4-solids-liquids-and-gases:t7:o2:1
# text = The glass pushes them up from the sides
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	glass	glass	NOUN	NN	Number=Sing	3	nsubj	_	_
3	pushes	push	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	3	obj	_	_
5	up	up	ADP	RP	_	3	compound:prt	_	_
6	from	from	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	sides	side	NOUN	NNS	Number=Plur	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **push up** | present | the glass | them *= they* |  | the sides |  |  | vn funnel-9.3-1-1 «NP V NP PP.trajectory»: agent=Agent they=Theme from side=Trajectory |

### Option 3 · ← Mova's choice · ✓ the right answer {#o3}

<!-- .ven lang=en -->
Gas is much lighter than the liquid around it

```conllu
# sent_id = question:chemistry:4-solids-liquids-and-gases:t7:o3:1
# text = Gas is much lighter than the liquid around it
1	Gas	gas	NOUN	NN	Number=Sing	4	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	cop	_	_
3	much	much	ADV	RB	_	4	advmod	_	_
4	lighter	light	ADJ	JJR	Degree=Cmp	0	root	_	_
5	than	than	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	liquid	liquid	NOUN	NN	Number=Sing	4	obl	_	_
8	around	around	ADP	IN	_	9	case	_	_
9	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | Gas |  |  | liquid |  | than the liquid; light *property* | tree rules |

### Option 4 {#o4}

<!-- .ven lang=en -->
Bubbles are filled with helium

```conllu
# sent_id = question:chemistry:4-solids-liquids-and-gases:t7:o4:1
# text = Bubbles are filled with helium
1	Bubbles	bubble	NOUN	NNS	Number=Plur	3	nsubj:pass	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	filled	fill	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	with	with	ADP	IN	_	5	case	_	_
5	helium	helium	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **fill** | present · passive |  | Bubbles |  |  |  | with helium | vn other\_cos-45.4 «NP V NP PP.instrument»: subject=Patient with helium=Instrument |

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**Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each text read on its own. Elamur Cosmic License.

<!-- /div -->

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- ← previous: [Solids, liquids and gases, test 6](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/4-solids-liquids-and-gases/t6/)
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