---
title: Mars — how Mova does on the tests · Space
description: Lesson 8 of the space course of Mova's primary school: 5 of 11 tests right, exam 3 of 4, every question with the options, the student's choice, the right answer and why it chose.
---

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[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/school-run/space/8-mars/)

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# Mars

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**Tests:** 5 of 11 right · **Exam:** 3 of 4 right · **Kind:** ★ · **Understood:** 10 of 15 · **Run:** 2026-10-18, commit `f3c23ea72`

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Lesson 8 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](https://md.mova.elamur.ai/free/en/corpora/school/space/8-mars/).

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Every question of this lesson and each of its options parsed by Mova, with trees and pragmatics: [the lesson's questions in the corpora](https://md.mova.elamur.ai/free/en/corpora/questions/space/8-mars/).

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### Test 1 · ★ · wrong ✗ {#t1}

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lol is Mars red cos it's super hot like lava?

- **1.** Yes, it is covered in lava seas — **← Mova's choice** · no support
- **2.** No, it is painted by the Sun — no support
- **3.** Yes, it glows red from the heat of its lava, like a fire — no support
- **4.** No, it is cold; the red is rust in its dust and rocks — **✓ the right answer** · no support

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**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](https://md.mova.elamur.ai/free/en/corpora/questions/space/8-mars/t1/)

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### Test 2 · ★ · wrong ✗ {#t2}

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In a film, an astronaut on Mars takes off her helmet and breathes. What is wrong?

- **1.** Nothing, Mars has air like ours — **← Mova's choice** · no support
- **2.** The air is fine but too hot — no support
- **3.** The air is very thin carbon dioxide, so she could not breathe — **✓ the right answer** · no support
- **4.** She would float away — no support

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**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](https://md.mova.elamur.ai/free/en/corpora/questions/space/8-mars/t2/)

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### Test 3 · ★ · wrong ✗ {#t3}

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Ella says Everest is the tallest mountain in the Solar System. What is the truth?

- **1.** The Moon's mountains are the tallest — **← Mova's choice** · no support
- **2.** Jupiter has the tallest mountain — no support
- **3.** She is right, Everest is the tallest anywhere — no support
- **4.** Olympus Mons on Mars is about two and a half times taller — **✓ the right answer** · no support

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**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](https://md.mova.elamur.ai/free/en/corpora/questions/space/8-mars/t3/)

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### Test 4 · ★ · wrong ✗ {#t4}

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A Mars rover finds smooth, rounded pebbles like those in a stream. What do they suggest?

- **1.** Wind on Mars rolls them round every day — **← Mova's choice** · score 6
- **2.** Water once flowed there long ago — **✓ the right answer** · score 6
- **3.** Someone polished them recently — score 6
- **4.** They fell from the Moon — no support

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**Why:** It took the question to ask what it is done to. 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 8, line 14: «Curiosity found smooth, rounded pebbles like those in a stream, a sign that water once flowed there.», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+6); the same thing acted on «smooth rounded pebbles» (+4). Against it: a different action (counts against) (-2); a different doer (counts against) (-2). The right option, 2, scored 6. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/space/8-mars/t4/)

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### Test 5 · ★ · wrong ✗ {#t5}

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If you lived on Mars, would your day feel much longer than on Earth?

- **1.** Only a little, a sol is about 40 minutes longer — **✓ the right answer** · no support
- **2.** Yes, a single day there lasts for a whole Earth month — **← Mova's choice** · score 7
- **3.** No, a day lasts only 10 hours — score 7
- **4.** Yes, the Sun never sets — no support

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**Why:** It took the question to ask which statement is true. It chose option 2 with score 7, tied with another option at 7 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 4, line 4: «Venus also spins backwards and very slowly: there the Sun rises in the west, and a day lasts longer than a year.», reached through the remembered sentence the question matched. What matched: the same doer «day» (+4); the same action «last» (+3). The right option, 1, found no support in what it remembers. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/space/8-mars/t5/)

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### Test 6 · ★ · right ✓ {#t6}

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news says "NASA FOUND LIFE ON MARS!!!" in 2025. What did scientists actually report?

- **1.** Green plants in a crater — score 9
- **2.** Living animals under the ice — no support
- **3.** Bones of old Martians — score 9
- **4.** A rock with chemical patterns that could be a possible sign of ancient microbes — **← Mova's choice** · **✓ the right answer** · score 10

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**Why:** It took the question to ask what it is done to. It chose option 4 with score 10, against 9 for the next best. Its support: lesson 8, line 5: «No life has been found yet; a 2025 rock sample has patterns that could be a sign of old microbes, but scientists say it is only a possible sign, not proof.», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+6); the same thing acted on «life» (+4). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/space/8-mars/t6/)

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### Test 7 · ★ · right ✓ {#t7}

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Why did the Mars rovers go to old crater lake beds?

- **1.** It is the only flat ground on Mars — no support
- **2.** Old lake beds are good places to look for signs of past life — **← Mova's choice** · **✓ the right answer** · score 8
- **3.** Craters have the best phone signal — no support
- **4.** Craters are the warmest places on Mars — no support

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**Why:** It took the question to ask why something happens (its cause). It chose option 2 with score 8, the only option with support. Its support: lesson 8, line 4: «Long ago water flowed there in rivers and lakes; today it is frozen in ice caps and underground, and rovers like Curiosity and Perseverance search the old lake…», reached through the option's own match among the sentences about the question's things. What matched: the same action «search» (+3); the same doer «rovers» (+3); the same circumstance (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/space/8-mars/t7/)

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### Test 8 · ★ · right ✓ {#t8}

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Why might a huge dust storm be a problem for a solar-powered rover?

- **1.** Dust storms on Mars are made of acid — no support
- **2.** Dust blocks sunlight and covers its solar panels — **← Mova's choice** · **✓ the right answer** · score 4
- **3.** The storm blows the rover to the Moon — no support
- **4.** Dust makes the rover heavier than a car, so it gets stuck — no support

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**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 8, line 15: «Mars has dust storms that can cover the whole planet for weeks; a storm in 2018 blocked the sunlight and covered the solar panels of the rover Opportunity, and…», reached through the option's own match among the sentences about the question's things. What matched: the same action «block» (+3); the same thing acted on «sunlight» (+2). Against it: a different doer (counts against) (-1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/space/8-mars/t8/)

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### Test 9 · ★ · right ✓ {#t9}

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A game shows Mars with one big moon like ours. What should it show?

- **1.** Two small, lumpy moons, Phobos and Deimos — **← Mova's choice** · **✓ the right answer** · score 3
- **2.** Three moons and a bright ring, like a tiny Saturn — no support
- **3.** No moons at all, only a thin ring of red dust — no support
- **4.** Seventy moons, just like the giant planets have — no support

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**Why:** It took the question to ask what it is done to. It chose option 1 with score 3, the only option with support. Its support: lesson 8, line 16: «Mars has two small, lumpy moons, Phobos and Deimos, probably captured asteroids or pieces from an ancient impact; scientists are not yet sure which.», 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 (+2); the same thing acted on «two small lumpy moons» (+1); the same property (+1). Against it: a different doer (counts against) (-1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/space/8-mars/t9/)

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### Test 10 · ★ · right ✓ {#t10}

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Valles Marineris placed on a map of Europe would reach...

- **1.** From one side of Europe to the other — **← Mova's choice** · **✓ the right answer** · no support
- **2.** Just round a football pitch and the stands — no support
- **3.** Just across one small town and its fields — no support
- **4.** Across Britain only, from coast to coast — no support

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**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](https://md.mova.elamur.ai/free/en/corpora/questions/space/8-mars/t10/)

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### Test 11 · ★ · wrong ✗ {#t11}

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Why is Mars much colder than the Earth?

- **1.** It spins backwards — **← Mova's choice** · score 6
- **2.** Its ice caps freeze the whole planet daily — no support
- **3.** It is further from the Sun and its thin air holds little heat — **✓ the right answer** · score 6
- **4.** It has no Sun shining on it — score 5

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**Why:** It took the question to ask why something happens (its cause). 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 5, line 9: «The Earth spins once in about 24 hours, giving day and night, and goes round the Sun in about 365.25 days.», reached through the option's own match among the sentences about the question's things. What matched: the same action «spin» (+3); the same doer «earth» (+3). The right option, 3, scored 6. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/space/8-mars/t11/)

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### Exam question 1 · formal language · wrong ✗ {#e1}

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Identify the reason for which the surface of Mars presents a red appearance.

- **1.** The presence of red vegetation — **← Mova's choice** · no support
- **2.** The reflection of light from its moons — no support
- **3.** The incandescence of its surface owing to intense heat — no support
- **4.** The presence of iron oxide in its surface materials — **✓ the right answer** · no support

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**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](https://md.mova.elamur.ai/free/en/corpora/questions/space/8-mars/e1/)

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### Exam question 2 · formal language · right ✓ {#e2}

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Which of the following statements most accurately characterises the present state of water upon Mars?

- **1.** It is principally frozen in the polar caps and beneath the surface — **← Mova's choice** · **✓ the right answer** · score 4
- **2.** It is present in extensive surface oceans — no support
- **3.** It exists solely as rainfall in the atmosphere — no support
- **4.** It has at no time been present upon Mars — no support

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**Why:** It took the question to ask who or what does it. It chose option 1 with score 4, the only option with support. Its support: lesson 8, line 11: «Mars once had rivers, lakes and perhaps a sea, and today its water is mostly frozen in polar ice caps and under the ground.», reached through the same lesson line as the sentence the question matched. What matched: the same place «polar ice caps» (+3); the same action «freeze» (+2). Against it: a different thing acted on (counts against) (-1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/space/8-mars/e2/)

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### Exam question 3 · formal language · right ✓ {#e3}

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Select the response consistent with the established facts concerning the search for life upon Mars.

- **1.** Fossilised animals were recovered by Perseverance — no support
- **2.** No life has been found, though a possible sign of ancient microbes was reported in 2025 — **← Mova's choice** · **✓ the right answer** · score 6
- **3.** Living organisms were conclusively identified in 2012 — no support
- **4.** The search was abandoned upon the arrival of Curiosity — no support

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**Why:** It took the question to ask which statement is true. It chose option 2 with score 6, the only option with support. Its support: lesson 8, line 5: «No life has been found yet; a 2025 rock sample has patterns that could be a sign of old microbes, but scientists say it is only a possible sign, not proof.», reached through the remembered sentence the question matched. What matched: the same action «find» (+3); the same thing acted on «life» (+3). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/space/8-mars/e3/)

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### Exam question 4 · formal language · right ✓ {#e4}

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Ascertain the distinction held by Olympus Mons.

- **1.** It is the largest moon of Mars — no support
- **2.** It is the deepest canyon in the whole Solar System — no support
- **3.** It is the largest impact crater upon Mars — no support
- **4.** It is the tallest volcano in the Solar System — **← Mova's choice** · **✓ the right answer** · score 6

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**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 8, line 9: «Olympus Mons on Mars is the tallest volcano in the Solar System, about 22 kilometres high, about two and a half times the height of Everest above sea level.», reached through the remembered sentence the question matched. What matched: the same thing acted on «tallest volcano» (+3); the same place «solar system» (+3); the same light verb (be, have, do, get, go) (+2). Against it: a different doer (counts against) (-2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/space/8-mars/e4/)

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- ← previous: [7. Phases, eclipses and tides](https://md.mova.elamur.ai/free/en/school-run/space/7-phases-eclipses-and-tides/)
- next →: [9. Asteroids and the asteroid belt](https://md.mova.elamur.ai/free/en/school-run/space/9-asteroids-and-the-asteroid-belt/)
- ↑ back to [Space](https://md.mova.elamur.ai/free/en/school-run/space/)