The park pond through the year: ducks, coots, swans, dragonflies and ice

Tests: 5 of 11 right · Exam: 0 of 4 right · Kind: plain · Understood: 12 of 15 · Run: 2026-10-18, commit f3c23ea72

Lesson 337 of the biology 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 ✗

«the swans are the King's, so if I nick one it's treason lol» What is true?

1. The King himself feeds every single swan in the country — ← Mova's choice · score 5
2. Swans belong to whichever person feeds them bread most often — score 5
3. Every wild bird in Britain belongs to the King by law — no support
4. The Crown can claim unmarked mute swans on open water — ✓ the right answer · score 3

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 337, line 4: «Cartoon ducks gobble whole loaves of bread and cartoon swans break people's arms. Real ducks are better off with peas and oats, and a swan just wants you to gi…», reached through the same lesson line as the sentence the question matched. What matched: the same action «give» (+4); the same thing acted on «swan» (+1); a different doer (counts against) (+1). Against it: one says «not», the other does not (counts against) (-1). The right option, 4, scored 3. · the question and its options parsed, with trees and pragmatics

Test 2 · wrong ✗

«that swan's hissing, my mate says one can snap your arm, run!» What is right?

1. Hissing just means the swan wants some bread, so go closer and feed it — ← Mova's choice · score 3
2. Swans break arms every day — score 3
3. Swans are harmless and love hugs — no support
4. That story is not proven; give the swan space, especially in spring — ✓ the right answer · no support

Why: It took the question to ask which statement is true. It chose option 1 with score 3, tied with another option at 3 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 337, line 10: «Mute swans guard their nests and young and can be fierce in spring; the story that a swan can break a man's arm is not proven, and giving swans space keeps bot…», reached through the option's own match among the sentences about the question's things. What matched: the same action «give» (+3). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 3 · right ✓

In a cartoon ducks gobble a whole loaf of bread and grow fat and happy. What is right?

1. Bread makes ducks grow fat, strong and able to fly further — no support
2. Ducks cannot eat bread at all — no support
3. Bread is the perfect duck food — no support
4. Bread fills them up without much goodness and dirties the water — ← Mova's choice · ✓ the right answer · score 3

Why: It took the question to ask which statement is true. It chose option 4 with score 3, the only option with support. Its support: lesson 213, line 7: «White bread is bad for ducks: it fills them up without the goodness they need, and soggy leftover bread pollutes ponds; peas, sweetcorn, oats and duck food are…», reached through the option's own match among the sentences about the question's things. What matched: the same action «fill up» (+3); the same circumstance (+2). Against it: a different doer (counts against) (-1); a different thing acted on (counts against) (-1). · the question and its options parsed, with trees and pragmatics

Test 4 · right ✓

«the dog ran onto the ice, i'm going after him» What is best?

1. Throw big stones to break up the ice — score 3
2. Run onto the ice fast before it cracks — score 6
3. Do not go on the ice; call for help — ← Mova's choice · ✓ the right answer · score 7
4. Crawl out quietly on your hands and knees — no support

Why: It took the question to ask which statement is true. It chose option 3 with score 7, against 6 for the next best. Its support: lesson 337, line 16: «People should never walk on pond ice, because it can break suddenly; if a dog goes onto the ice, nobody should follow it, but call for help.», reached through the same lesson line as the sentence the question matched. What matched: the same action «call» (+4); the same circumstance (+3). · the question and its options parsed, with trees and pragmatics

Test 5 · right ✓

Why is pond ice dangerous even when it looks thick?

1. Thick ice is always too slippery — no support
2. Ice melts the moment you step on it — score 1
3. It can break suddenly in places you cannot see — ← Mova's choice · ✓ the right answer · score 4
4. Ducks bite people on the ice — score 1

Why: It took the question to ask why something happens (its cause). It chose option 3 with score 4, against 1 for the next best. Its support: lesson 337, line 16: «People should never walk on pond ice, because it can break suddenly; if a dog goes onto the ice, nobody should follow it, but call for help.», reached through the option's own match among the sentences about the question's things. What matched: the same property (+3); the same action «break» (+2). Against it: the same doer «ice» (-1). · the question and its options parsed, with trees and pragmatics

Test 6 · right ✓

«dragonflies are just big flies, they can't hunt» What is right?

1. Dragonflies sting people for food — no support
2. Dragonflies are expert hunters that catch almost every insect they chase — ← Mova's choice · ✓ the right answer · score 3
3. Dragonflies are too slow to catch flies, so they eat dead ones — score 2
4. Dragonflies eat only leaves — no support

Why: It took the question to ask which statement is true. It chose option 2 with score 3, against 2 for the next best. Its support: lesson 10, line 10: «Dragonfly larvae live underwater for up to several years and catch insects, tadpoles and small fish with a hinged jaw that shoots out, and adult dragonflies ca…», reached through the option's own match among the sentences about the question's things. What matched: the same action «chase» (+3). · the question and its options parsed, with trees and pragmatics

Test 7 · right ✓

A girl sees ducks who cannot fly in July and thinks they are hurt. What is true?

1. They are hurt, and every one of them needs to be taken to a vet — no support
2. They have forgotten how to fly — score 0
3. They are waiting for winter to fly away — score -1
4. Ducks moult all their flight feathers at once and regrow them — ← Mova's choice · ✓ the right answer · score 5

Why: It took the question to ask which statement is true. It chose option 4 with score 5, against 0 for the next best. Its support: lesson 337, line 17: «In summer ducks moult all their flight feathers at once and cannot fly for a few weeks, drakes turn brown like females to hide, and they grow bright new feathe…», reached through the same lesson line as the sentence the question matched. What matched: the same action «moult» (+4); the same thing acted on «flight feathers» (+1). · the question and its options parsed, with trees and pragmatics

Test 8 · wrong ✗

How could you show that water has a skin?

1. Stir the water fast — score 3
2. Freeze the water in a tray — ← Mova's choice · score 5
3. Lay a dry paperclip gently on the water and watch it float — ✓ the right answer · score 5
4. Pour salt into a glass — no support

Why: It took the question to ask what something is like. It chose option 2 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 131, line 16: «In the Ice Age so much water was frozen into ice sheets that the sea was much lower, and people could walk from Asia to America over land that is now under the…», reached through the option's own match among the sentences about the question's things. What matched: the same action «freeze» (+3); the same thing acted on «much water» (+2). The right option, 3, scored 5. · the question and its options parsed, with trees and pragmatics

Test 9 · wrong ✗

Which feet would be best for both swimming and walking?

1. Toes with lobes that spread to swim and fold to walk — ✓ the right answer · no support
2. Toes with sticky pads — no support
3. Webbed feet with no separate toes at all, like a flipper — ← Mova's choice · score 5
4. Hooves — no support

Why: It took the question to ask who or what does it. It chose option 3 with score 5, the only option with support. Its support: lesson 308, line 12: «Frogs usually have four toes on each front foot and five on each back foot, 18 toes in all; the long back feet are often webbed for jumping and swimming.», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «long back feet» (+4); the same action «web» (+1). The right option, 1, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 10 · wrong ✗

Count them: a mallard and 6 ducklings cross the path and 2 swans glide past. How many legs and how many beaks?

1. 18 legs and 7 beaks — ← Mova's choice · no support
2. 18 legs and 9 beaks — ✓ the right answer · no support
3. 36 legs and 9 beaks — no support
4. 9 legs and 9 beaks — 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 11 · wrong ✗

Count them: 3 dragonflies zoom over the pond. How many wings are flapping?

1. 6 — ← Mova's choice · score 2
2. 12 — ✓ the right answer · score 2
3. 3 — score 2
4. 18 — score 2

Why: It took the question to ask what it is done to. It chose option 1 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 305, line 6: «The old story that scientists «proved» bumblebees cannot fly came from a rough sum treating a bee wing like a stiff aeroplane wing; real bee wings flap about 2…», reached through the option's own match among the sentences about the question's things. What matched: the same action «flap» (+1); the same doer «real bee wings» (+1). The right option, 2, scored 2. · 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 distinction between the coot and the moorhen?

1. The two birds are indistinguishable in all respects — score 6
2. The coot bears a white bill and frontal patch, whereas the moorhen bears a bill of red and yellow — ✓ the right answer · no support
3. The moorhen possesses lobed toes, whereas the coot possesses webbed feet — score 8
4. The coot is white in plumage, whereas the moorhen is black — ← Mova's choice · score 10

Why: It took the question to ask who or what does it. It chose option 4 with score 10, against 8 for the next best. Its support: lesson 337, line 5: «A coot is a black water bird with a white beak and a white forehead patch, and a moorhen is a black bird with a red and yellow beak; coots dive more and moorhe…», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+4); the same light verb (be, have, do, get, go) (+3); the same doer «coot» (+2); the same property (+1). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Exam question 2 · formal language · wrong ✗

Identify the principal reason for which bread is regarded as an unsuitable food for ducks.

1. Its provision is prohibited by the Crown — ← Mova's choice · no support
2. It expands within the stomach and renders the bird unable to float — no support
3. It offers little nourishment, and the residue pollutes the water — ✓ the right answer · no support
4. It is entirely indigestible to all waterfowl — 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 consistent with the established facts concerning the ceremony of swan upping.

1. It constitutes a race between swans upon the River Thames — ← Mova's choice · no support
2. It constitutes an annual count of swans upon the River Thames, conducted chiefly to examine their health — ✓ the right answer · no support
3. It involves the marking of every swan in Britain with a crown — no support
4. It involves the removal of all swans to captivity for the winter — 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 ✗

Ascertain the conduct appropriate should a dog venture onto the ice of a frozen pond.

1. The owner should crawl onto the ice in silence — no support
2. No person should follow the animal onto the ice, and assistance should be summoned — ✓ the right answer · score 3
3. Stones should be thrown in order to break the ice beneath the dog — score 3
4. The owner should proceed rapidly onto the ice to recover the dog — ← Mova's choice · score 6

Why: It took the question to ask which statement is true. It chose option 4 with score 6, against 3 for the next best. Its support: lesson 7, line 3: «The animals beat the cold by teamwork and clever bodies: emperor penguins huddle in a blizzard and take turns in the warm middle, icefish carry natural antifre…», reached through the option's own match among the sentences about the question's things. What matched: the same place «ice» (+4); the same action «keep» (+3). Against it: a different doer (counts against) (-1). The right option, 2, scored 3. · the question and its options parsed, with trees and pragmatics

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/biology/337-the-park-pond-through-the-year-ducks-coots-swans-dragonflies-and-ice/