Islands, seas and lakes
Tests: 3 of 11 right · Exam: 0 of 4 right · Kind: ★ · Understood: 9 of 15 · Run: 2026-10-18, commit f3c23ea72
Lesson 6 of the geography 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 ✗
In EU5 you see Denmark and Greenland together in 1337. What did the real map look like?
- 1. Denmark already ruled Greenland and Norway — ← Mova's choice · score 8
- 2. Greenland belonged to England — score 8
- 3. Nobody lived in Greenland at all — no support
- 4. Greenland's settlers and Iceland were under Norway, not yet Denmark — ✓ the right answer · score 5
Why: It took the question to ask what it is done to. 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 6, line 1: «An island is land with water all round; the biggest is Greenland, because Australia is counted as a continent instead.», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+6); the same thing acted on «greenland» (+4). Against it: a different doer (counts against) (-2). The right option, 4, scored 5. · the question and its options parsed, with trees and pragmatics
Test 2 · ★ · right ✓
Which island in Europe is bigger than Ireland and Iceland?
- 1. Sicily — no support
- 2. Corsica — no support
- 3. Great Britain — ← Mova's choice · ✓ the right answer · score 7
- 4. Crete — no support
Why: It took the question to ask who or what does it. It chose option 3 with score 7, the only option with support. Its support: lesson 6, line 8: «Great Britain is the largest island in Europe and the ninth largest in the world.», 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 «great britain» (+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
Test 3 · ★ · right ✓
Why is it hard to count exactly how many islands Indonesia has?
- 1. The islands drift about and move every year — no support
- 2. Some are tiny rocks and tides cover and uncover them — ← Mova's choice · ✓ the right answer · score 5
- 3. Indonesia keeps the number secret — no support
- 4. Most of them are under ice — no support
Why: It took the question to ask why something happens (its cause). It chose option 2 with score 5, the only option with support. Its support: lesson 6, line 9: «Indonesia is the world's largest country made only of islands, with more than 17,000 islands; many are tiny rocks that the tide covers and uncovers, so the exa…», reached through the same lesson line as the sentence the question matched. What matched: the same doer «tide» (+3); the same action «cover» (+2). · the question and its options parsed, with trees and pragmatics
Test 4 · ★ · wrong ✗
How can Baikal be smaller in area than Lake Superior but hold more water?
- 1. It is far deeper — ✓ the right answer · no support
- 2. It is fed by the sea — ← Mova's choice · score 6
- 3. It is measured in winter only — no support
- 4. Its water is heavier — no support
Why: It took the question to ask what something is like. It chose option 2 with score 6, the only option with support. Its support: lesson 6, line 4: «A lake is water closed in by land, and the Caspian is so huge and salty that people call it a sea, while Baikal is so deep it holds more water than all five Gr…», reached through the remembered sentence the question matched. What matched: the same doer «sea» (+4); the same thing acted on «more water» (+4). Against it: a different action (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 5 · ★ · right ✓
Why is the Caspian salty even though fresh rivers flow into it?
- 1. The Volga is a salty river — no support
- 2. The ocean flows into it secretly under the ground — no support
- 3. Water leaves only by evaporation, leaving the salt behind — ← Mova's choice · ✓ the right answer · score 5
- 4. Salt mines on the shore keep falling into the water — no support
Why: It took the question to ask why something happens (its cause). It chose option 3 with score 5, the only option with support. Its support: lesson 6, line 11: «The Caspian Sea is the world's largest lake by area, at about 370,000 square kilometres, and its water is salty, though only about a third as salty as the ocea…», reached through the same lesson line as the sentence the question matched. What matched: the same doer «water» (+3); the same action «leave» (+2). · the question and its options parsed, with trees and pragmatics
Test 6 · ★ · wrong ✗
Why do people float so easily in the Dead Sea?
- 1. The lake is very shallow — no support
- 2. The water is warm — ← Mova's choice · score 6
- 3. There are no waves at all to pull you under — no support
- 4. Its very salty water is denser than normal water — ✓ the right answer · score 6
Why: It took the question to ask why something happens (its cause). It chose option 2 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 6, line 16: «The shore of the Dead Sea, between Israel, the West Bank and Jordan, is about 430 metres below sea level, the lowest land on Earth, and its water is almost ten…», reached through the cause of the sentence the question matched. What matched: the same doer «water» (+4); the same light verb (be, have, do, get, go) (+2). The right option, 4, scored 6. · the question and its options parsed, with trees and pragmatics
Test 7 · ★ · wrong ✗
Why might some freshwater fish survive in parts of the Baltic?
- 1. It has no salt at all — ← Mova's choice · no support
- 2. The Baltic is really a lake cut off from the North Sea — no support
- 3. Its water is only a little salty, especially in the north — ✓ the right answer · no support
- 4. Fish are carried in by ships — 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 8 · ★ · wrong ✗
Mate says the Med and the Atlantic are equally salty cos they're joined. True?
- 1. Yes, joined seas are always the same — ← Mova's choice · no support
- 2. No, the Mediterranean is fresh — no support
- 3. No, the Mediterranean is saltier because of strong evaporation — ✓ the right answer · no support
- 4. Yes, the Strait of Gibraltar is wide enough to mix the two of them fully — 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 9 · ★ · wrong ✗
What lesson does the Aral Sea teach about taking water from rivers?
- 1. Rivers always refill a lake — ← Mova's choice · score 6
- 2. Deserts make more rain — no support
- 3. Take too much and a whole sea can die — ✓ the right answer · score 6
- 4. Lakes grow when farms use water — score 6
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 6, line 3: «How salty a sea is depends on a simple balance: lots of rivers make it fresher, like the Baltic, and strong sun and few rivers make it saltier, like the Medite…», 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 «strong sun» (+2); the same thing acted on «sea» (+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
Test 10 · ★ · wrong ✗
Which is bigger in area, the Caspian Sea or Lake Superior?
- 1. Nobody knows — ← Mova's choice · no support
- 2. The Caspian Sea, by far — ✓ the right answer · no support
- 3. They are about the same size — no support
- 4. Lake Superior, by far — 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 11 · ★ · wrong ✗
What would happen to the Baltic if its rivers dried up but the straits stayed open?
- 1. It would turn into fresh water — no support
- 2. Nothing would change at all — ← Mova's choice · score -4
- 3. It would get colder for ever — no support
- 4. It would grow saltier, closer to the ocean — ✓ the right answer · no support
Why: It took the question to ask what happens next. It chose option 2 with score -4, the only option with support. Its support: lesson 4, line 16: «Many countries move their clocks forward an hour in summer, and the UK changes on the last Sunday in March and the last Sunday in October; near the equator day…», reached through what followed the sentence the question matched. What matched: the same action «change» (+4). Against it: a different doer (counts against) (-2); one says «not», the other does not (counts against) (-6). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Exam question 1 · formal language · wrong ✗
Identify the largest body of water upon the Earth's surface that is wholly enclosed by land.
- 1. Lake Baikal — ← Mova's choice · no support
- 2. Lake Superior — no support
- 3. The Caspian Sea — ✓ the right answer · no support
- 4. The Lakes Michigan and Huron taken together — 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 ✗
Which of the following statements most accurately characterises the salinity of the Baltic Sea?
- 1. It is entirely fresh — ← Mova's choice · no support
- 2. It exceeds that of the Dead Sea — no support
- 3. It is brackish owing to abundant river inflow and restricted outflow — ✓ the right answer · no support
- 4. It is identical to that of the open ocean on account of the Danish straits — 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 ✗
Determine which island, Australia being excluded as a continent, possesses the greatest area.
- 1. New Guinea — no support
- 2. Borneo, in Asia — no support
- 3. Greenland — ✓ the right answer · no support
- 4. Great Britain — ← Mova's choice · 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 6, line 8: «Great Britain is the largest island in Europe and the ninth largest in the world.», reached through the option's own match among the sentences about the question's things. What matched: the same doer «great britain» (+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
Exam question 4 · formal language · wrong ✗
Ascertain the principal cause of the diminution of the Aral Sea since the nineteen-sixties.
- 1. The draining of its waters by a canal constructed to the Caspian — ← Mova's choice · no support
- 2. A succession of earthquakes — no support
- 3. The diversion of its feeder rivers for irrigation — ✓ the right answer · no support
- 4. The rising of the ocean — 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
This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/geography/6-islands-seas-and-lakes/