The Moon

Tests: 4 of 11 right · Exam: 1 of 4 right · Kind: plain · Understood: 7 of 15 · Run: 2026-10-18, commit f3c23ea72

Lesson 6 of the space 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 ✗

my sister says the dark side of the Moon is always pitch black. right?

1. Yes, the Sun never shines on it — ← Mova's choice · no support
2. Yes, that is why it is called the dark side — no support
3. No, it glows with its own light — no support
4. No, the far side gets sunlight too; we just never see it from here — ✓ 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 2 · wrong ✗

In a cartoon, astronauts on the Moon hear a loud bang when a rock falls. What is wrong?

1. Nothing, sound is louder on the Moon — no support
2. Rocks cannot fall on the Moon — ← Mova's choice · score 2
3. With almost no air there is no sound — ✓ the right answer · no support
4. They would hear it only at night — no support

Why: It took the question to ask which statement is true. It chose option 2 with score 2, the only option with support. Its support: lesson 2, line 15: «The oldest solid bits in meteorites, space rocks that fell to Earth, are about 4.57 billion years old, and their radioactive atoms, which slowly change at a st…», reached through the remembered sentence the question matched. What matched: the same action «fall» (+4); the same doer «space rocks» (+4). Against it: one says «not», the other does not (counts against) (-6). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 3 · right ✓

Old maps call a Moon patch the Sea of Tranquillity. Could you go swimming there?

1. Yes, but only at full Moon — no support
2. No, it is a plain of old hardened lava — ← Mova's choice · ✓ the right answer · score 7
3. Yes, it is shallow salty water — no support
4. No, the water is frozen solid all the way down — no support

Why: It took the question to ask which statement is true. It chose option 2 with score 7, the only option with support. Its support: lesson 6, line 9: «The dark patches on the Moon are called maria, Latin for seas, but they are plains of ancient hardened lava, not water.», reached through the same lesson line as the sentence the question matched. What matched: the same doer «patches» (+2); the same thing acted on «plains» (+2); the same circumstance (+2); the same light verb (be, have, do, get, go) (+1). · the question and its options parsed, with trees and pragmatics

Test 4 · right ✓

If you weigh your 30-kilogram backpack on the Moon, how heavy would it feel?

1. Like about 5 kilograms — ← Mova's choice · ✓ the right answer · no support
2. Exactly 30 kilograms — no support
3. It would float away — no support
4. Like about 180 kilograms — 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 ✗

Why can astronauts' footprints stay on the Moon for millions of years?

1. The Moon's dust is glued down hard by the cold — no support
2. The astronauts painted them on to make them last — ← Mova's choice · score 4
3. There is no wind or rain to wipe them away — ✓ the right answer · no support
4. The Moon's ground is frozen hard like concrete — no support

Why: It took the question to ask why something happens (its cause). It chose option 2 with score 4, the only option with support. Its support: lesson 6, line 4: «There is almost no air, so on the Moon the sky is black even by day, there is no wind and no sound, and footprints can last for millions of years.», reached through the option's own match among the sentences about the question's things. What matched: the same action «last» (+2); the same doer «footprints» (+2). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 6 · right ✓

grandad says we never went back after Apollo, nobody's been near the Moon since. still true?

1. Yes, the Moon is off-limits by law — no support
2. Yes, nobody has gone near it since 1972 — no support
3. No, people live on the Moon now — no support
4. No, Artemis II flew a crew around the Moon in April 2026 — ← Mova's choice · ✓ the right answer · score 12

Why: It took the question to ask which statement is true. It chose option 4 with score 12, the only option with support. Its support: lesson 6, line 14: «In April 2026 the Artemis II mission was reported to have flown four astronauts around the Moon, the first crew to go there since 1972; they did not land.», reached through the remembered sentence the question matched. What matched: the same action «fly» (+4); the same thing acted on «four astronauts» (+4); the same place «moon» (+4). · the question and its options parsed, with trees and pragmatics

Test 7 · wrong ✗

Why does a dancer who keeps facing her partner explain the Moon's face?

1. The Moon dances round the Sun — no support
2. The Moon moves its face to watch us — ← Mova's choice · score 5
3. The Moon turns once each orbit, so the same side always faces us — ✓ the right answer · score 2
4. The Moon stops spinning when it faces us — score 4

Why: It took the question to ask why something happens (its cause). It chose option 2 with score 5, against 4 for the next best. Its support: lesson 6, line 7: «The Moon always shows the same face to the Earth because it spins once in exactly the time it takes to orbit, about 27 days.», reached through the option's own match among the sentences about the question's things. What matched: the same doer «moon» (+2); the same thing acted on «same face» (+2); its «because» matches the remembered cause (+2). Against it: a different action (counts against) (-1). The right option, 3, scored 2. · the question and its options parsed, with trees and pragmatics

Test 8 · wrong ✗

Why might future Moon bases be built near the poles?

1. It is warmer at the poles — ← Mova's choice · no support
2. Gravity is much stronger at the poles, so it is safer — no support
3. There is water ice in shadowed craters there — ✓ the right answer · no support
4. The poles are made of gold — 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 would happen to the Moon's distance over a billion years?

1. It would crash into the Earth — ← Mova's choice · no support
2. It would fly off into space at once — no support
3. It would be noticeably further away, drifting about 3.8 cm each year — ✓ the right answer · no support
4. It would stay exactly as it is — 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 ✓

Tom says the Moon is a light, like a giant lamp. What is the truth?

1. It is lit by the stars behind it — no support
2. It reflects sunlight; it makes no light of its own — ← Mova's choice · ✓ the right answer · score 12
3. It glows from its hot volcanoes — score 4
4. He is right, it burns like a giant candle up in the sky — no support

Why: It took the question to ask which statement is true. It chose option 2 with score 12, against 4 for the next best. Its support: lesson 6, line 17: «The Moon makes no light of its own; it shines by reflecting sunlight.», reached through the remembered sentence the question matched. What matched: the same action «make» (+4); the same doer «moon» (+4); the same thing acted on «light» (+4). · the question and its options parsed, with trees and pragmatics

Test 11 · wrong ✗

If you lined up Earths from here to the Moon, about how many would you need?

1. About 3 — ← Mova's choice · no support
2. About 1,000 — no support
3. About 300 — no support
4. About 30 — ✓ 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 1 · formal language · wrong ✗

State the reason for which the same hemisphere of the Moon is perpetually presented to the Earth.

1. The opposite hemisphere receives no illumination — ← Mova's choice · no support
2. It does not rotate about its axis whatsoever — no support
3. Its period of rotation is equal to its period of revolution — ✓ the right answer · no support
4. The Earth's atmosphere obscures the opposite hemisphere — 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 nature of the dark regions of the lunar surface designated maria.

1. Shadows cast by the lunar mountains — ← Mova's choice · no support
2. Bodies of standing water — no support
3. Plains of ancient solidified lava — ✓ the right answer · no support
4. Regions of dense vegetation — 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 ✗

Ascertain the approximate gravitational acceleration at the lunar surface relative to that of the Earth.

1. Approximately one half — ← Mova's choice · no support
2. Approximately equal — no support
3. Approximately one sixth — ✓ the right answer · no support
4. Approximately twice as great — 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

Exam question 4 · formal language · right ✓

Which of the following statements is consistent with the established facts concerning the crewed exploration of the Moon?

1. Twelve landings took place during the year 2026 — no support
2. No person has at any time set foot upon it — no support
3. Twelve persons walked upon it in six landings between 1969 and 1972 — ← Mova's choice · ✓ the right answer · score 3
4. A single person walked upon it in 1969 only — score 3

Why: It took the question to ask which statement is true. It chose option 3 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 6, line 13: «Twelve astronauts walked on the Moon in six Apollo landings between 1969 and 1972, starting with Neil Armstrong and Buzz Aldrin.», reached through the option's own match among the sentences about the question's things. What matched: the same action «walk» (+2); the same circumstance (+2). Against it: a different doer (counts against) (-1). · the question and its options parsed, with trees and pragmatics

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/space/6-the-moon/