Weather, lightning and storms
Tests: 3 of 11 right · Exam: 2 of 4 right · Kind: ★★ · Understood: 6 of 15 · Run: 2026-10-18, commit f3c23ea72
Lesson 15 of the myths 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 ✗
You're playing football in the park and hear thunder. Your mate says, "Shelter under that big oak!" What do you do?
- 1. Run to a building or a car, never under a tree — ✓ the right answer · score 10
- 2. Lie flat in the goalmouth — score 6
- 3. Shelter under the oak until it passes — score 10
- 4. Keep playing, lightning never hits parks or football pitches — ← Mova's choice · score 11
Why: It took the question to ask what is done. It chose option 4 with score 11, against 10 for the next best. Its support: lesson 15, line 1: «Thunder cracks over the house and Grandad pats your hand: "Don't worry, lightning never strikes the same place twice!" It's a cosy thing to say in a storm, and…», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+5); the same action «strike» (+4); a different doer (counts against) (+1); a different thing acted on (counts against) (+1). The right option, 1, scored 10. · the question and its options parsed, with trees and pragmatics
Test 2 · ★★ · wrong ✗
"Lightning already hit that church spire last year, so it's the safest spot now lol" What's wrong?
- 1. Churches can't be struck, they're protected — no support
- 2. Nothing, lightning never repeats a place — no support
- 3. Tall things get struck again and again — ✓ the right answer · score 4
- 4. Only new buildings get struck, never old ones — ← Mova's choice · score 7
Why: It took the question to ask which statement is true. It chose option 4 with score 7, against 4 for the next best. Its support: lesson 15, line 1: «Thunder cracks over the house and Grandad pats your hand: "Don't worry, lightning never strikes the same place twice!" It's a cosy thing to say in a storm, and…», reached through the same lesson line as the sentence the question matched. What matched: the same action «strike» (+4); the same thing acted on «tall buildings» (+3). The right option, 3, scored 4. · the question and its options parsed, with trees and pragmatics
Test 3 · ★★ · wrong ✗
Kieran's dad has the right idea but the wrong reason about cars. Why is it worth fixing?
- 1. Cars never get struck anyway — ← Mova's choice · no support
- 2. It doesn't matter at all — no support
- 3. A car without a metal roof, like a soft-top, wouldn't protect the same way — ✓ the right answer · no support
- 4. His reason is fine, rubber stops all lightning — 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 4 · ★★ · right ✓
You see a flash and count 9 seconds before the thunder. About how far away is the lightning?
- 1. About 3 kilometres — ← Mova's choice · ✓ the right answer · no support
- 2. About 30 metres — no support
- 3. Right overhead — no support
- 4. About 9 kilometres — 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 ✗
On a hot evening you see flashes but no thunder. What would happen if you drove towards them?
- 1. You'd find a hot cloud with no electricity in it at all — ← Mova's choice · no support
- 2. You'd find a special silent storm — no support
- 3. You'd likely start to hear thunder as you got closer — ✓ the right answer · no support
- 4. The flashes would vanish forever — 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 6 · ★★ · wrong ✗
Granny looks at the freezing clear sky: "Too cold to snow tonight." What's the most accurate reply?
- 1. Cold makes snow certain — ← Mova's choice · no support
- 2. Very cold air holds little water, so snow is less likely, but still possible — ✓ the right answer · no support
- 3. She's right, snow can't fall below zero — no support
- 4. Snow only falls in summer — 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 7 · ★★ · wrong ✗
Ava's grandad swears by "red sky at night". How could you check it fairly?
- 1. Look at one red sunset tonight and see whether tomorrow is sunny — ← Mova's choice · no support
- 2. Keep a sky diary for a month and compare the next day's weather — ✓ the right answer · no support
- 3. Ask a shepherd — no support
- 4. Google it once — 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 · ★★ · right ✓
A cartoon shows a storm called Hurricane Bob, and Bob gets arrested for causing it. What's the real story?
- 1. Bob is the scientist who made it — no support
- 2. Bob won a competition to cause storms — score -1
- 3. Names come from a list made in advance; nobody causes it — ← Mova's choice · ✓ the right answer · score 13
- 4. Storms are named after the angriest person nearby at the time — score 5
Why: It took the question to ask what it is done to. It chose option 3 with score 13, against 5 for the next best. Its support: lesson 15, line 15: «Hurricanes get names from lists made in advance by the World Meteorological Organization, to make warnings clear; the Met Office names UK storms too.», reached through the same lesson line as the sentence the question matched. What matched: the same action «make» (+4); it fills the role the question asks for (+4); the same thing acted on «lists» (+3); the same place «advance» (+2). · the question and its options parsed, with trees and pragmatics
Test 9 · ★★ · wrong ✗
Lola catches two tiny snow crystals that look exactly alike and says her card lied. What do you say?
- 1. One of them must be plastic — ← Mova's choice · no support
- 2. Snowflakes are always identical anyway — no support
- 3. Simple tiny crystals can match; big complex flakes almost never do — ✓ the right answer · no support
- 4. Her magnifier must be broken — 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 · ★★ · wrong ✗
Grandad is calming you in a storm with his saying. What's the kind and safe response?
- 1. Go outside together to prove to him that his old saying is wrong — ← Mova's choice · score 5
- 2. Stay indoors with him; it's a nice saying but not a safety rule — ✓ the right answer · no support
- 3. Tell him off for lying — no support
- 4. Stand at the open window to watch — no support
Why: It took the question to ask what it is done to. It chose option 1 with score 5, the only option with support. Its support: lesson 15, line 1: «Thunder cracks over the house and Grandad pats your hand: "Don't worry, lightning never strikes the same place twice!" It's a cosy thing to say in a storm, and…», reached through the option's own match among the sentences about the question's things. What matched: the same doer «grandad» (+3); the same action «say» (+2). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Test 11 · ★★ · right ✓
Your friend camping in a field says she'll lie flat if a storm comes. What do you tell her?
- 1. Climb the nearest tree so the lightning goes under you instead — no support
- 2. Lying flat is worse; get into a building or a metal-roofed car — ← Mova's choice · ✓ the right answer · score 5
- 3. Hold the tent pole to earth it — no support
- 4. Good idea, the lower the better — no support
Why: It took the question to ask what it is done to. It chose option 2 with score 5, the only option with support. Its support: lesson 6, line 15: «Growth hormone is released during deep sleep, and you are slightly taller in the morning because your spine stretches out while you lie flat.», reached through the remembered sentence the question matched. What matched: the same action «lie» (+3); the same property (+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 incidence of lightning upon a given location?
- 1. Lightning is incapable of striking a location more than once — ← Mova's choice · no support
- 2. Lightning avoids structures previously struck — no support
- 3. Lightning strikes exclusively in open countryside — no support
- 4. Lightning frequently strikes the same location, tall structures especially — ✓ 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 2 · formal language · wrong ✗
Identify the principal reason for which the occupants of a metal-roofed motor vehicle are protected from lightning.
- 1. The glass windows repel the electrical discharge — ← Mova's choice · no support
- 2. The engine absorbs the electrical energy — no support
- 3. The rubber tyres insulate the vehicle entirely from the ground — no support
- 4. The current is conducted around the metal body to the ground — ✓ 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 3 · formal language · right ✓
It is given that a person in open country hears thunder. Select the response consistent with official safety advice.
- 1. The person is to seek shelter within a building or a metal-roofed vehicle — ← Mova's choice · ✓ the right answer · no support
- 2. The person is to shelter beneath the tallest available tree until it passes — no support
- 3. The person is to lie flat upon the ground — no support
- 4. The person is to raise a metal object above the head — 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 · right ✓
Ascertain the nature of the phenomenon commonly termed heat lightning.
- 1. Lightning devoid of electrical charge — no support
- 2. Sunlight reflected from clouds after sunset — no support
- 3. A distinct form of lightning produced by heat alone — no support
- 4. Ordinary lightning at a distance too great for its thunder to be heard — ← Mova's choice · ✓ the right answer · score 6
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 15, line 11: «"Heat lightning" is ordinary lightning too far away for its thunder to reach you; sound travels about one kilometre every three seconds.», reached through the same lesson line as the sentence the question matched. What matched: the same action «thunder» (+4); the same doer «lightning» (+2). · the question and its options parsed, with trees and pragmatics
This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/myths/15-weather-lightning-and-storms/