Germs, hygiene and vaccines
Tests: 9 of 13 right · Exam: 2 of 4 right · Kind: ★ · Understood: 10 of 17 · Run: 2026-10-18, commit f3c23ea72
Lesson 37 of the world 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 · ★ · right ✓
Sam has a cold and asks for antibiotics. What should the doctor say?
- 1. Take double antibiotics for faster healing — no support
- 2. Antibiotics cure every illness at once — no support
- 3. Antibiotics do not work on cold viruses — ← Mova's choice · ✓ the right answer · score 13
- 4. Antibiotics turn a cold into flu — score 3
Why: It took the question to ask what it is done to. It chose option 3 with score 13, against 3 for the next best. Its support: lesson 37, line 5: «Antibiotics are medicines that kill bacteria, but they do not work against viruses such as the cold or the flu.», reached through the remembered sentence the question matched. What matched: the same circumstance (+6); the same action «work» (+4); the same doer «antibiotics» (+3). · the question and its options parsed, with trees and pragmatics
Test 2 · ★ · right ✓
A class washes their hands before lunch. Fewer children get tummy bugs. Why?
- 1. Fewer germs reach their mouths with the food — ← Mova's choice · ✓ the right answer · score 4
- 2. Soap gives them extra vitamins — no support
- 3. Washing the hands makes their stomachs stronger and tougher — score 4
- 4. The water warms their food — no support
Why: It took the question to ask why something happens (its cause). It chose option 1 with score 4, tied with another option at 4 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 37, line 2: «Germs spread through coughs and sneezes, dirty hands, dirty food and water, and some through insect bites. Washing hands with soap for about 20 seconds, coveri…», reached through the same lesson line as the sentence the question matched. What matched: the same doer «germs» (+3); the same circumstance (+2). Against it: a different action (counts against) (-1). · the question and its options parsed, with trees and pragmatics
Test 3 · ★ · wrong ✗
Which is true?
- 1. A vaccine is made of white blood cells — ← Mova's choice · no support
- 2. A vaccine makes you ill so badly that you learn — no support
- 3. A vaccine kills all helpful bacteria too — no support
- 4. A vaccine shows the body a harmless form of a germ — ✓ the right answer · 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 4 · ★ · right ✓
Why do antibodies work against only one kind of germ?
- 1. Antibodies are made in the stomach — score 3
- 2. Each fits its own germ like a key fits one lock — ← Mova's choice · ✓ the right answer · score 7
- 3. Antibodies only work at night — no support
- 4. Each one is far too small to grab any other germs — no support
Why: It took the question to ask why something happens (its cause). It chose option 2 with score 7, against 3 for the next best. Its support: lesson 37, line 3: «The body fights back: white blood cells attack the germs and make antibodies that fit one kind of germ like a key fits a lock. Afterwards the body remembers th…», reached through the same lesson line as the sentence the question matched. What matched: the same doer «key» (+3); the same action «fit» (+2); the same thing acted on «lock» (+2). · the question and its options parsed, with trees and pragmatics
Test 5 · ★ · wrong ✗
If nobody washed their hands, what would most likely happen?
- 1. People would become stronger and fitter — ← Mova's choice · no support
- 2. Nothing would change for anyone — no support
- 3. Germs would die out from loneliness — no support
- 4. More people would fall ill — ✓ 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 6 · ★ · right ✓
A doctor in the 1840s told other doctors to wash their hands. What happened?
- 1. The hospital ran out of water — no support
- 2. Nothing changed — no support
- 3. Fewer mothers in his hospital died of infection — ← Mova's choice · ✓ the right answer · score 7
- 4. More people caught colds — no support
Why: It took the question to ask which statement is true. It chose option 3 with score 7, the only option with support. Its support: lesson 37, line 18: «Doctors found that washing hands saves lives; Ignaz Semmelweis showed it in a hospital in the 1840s, where fewer mothers died of infection once doctors washed…», reached through a sentence linked to the one the question matched. What matched: the same action «die» (+3); the same doer «fewer mothers» (+2); the same circumstance (+2). · the question and its options parsed, with trees and pragmatics
Test 7 · ★ · right ✓
Yoghurt is full of live bacteria. Is it safe to eat?
- 1. Only if it is boiled for a long time first — no support
- 2. No, all bacteria are dangerous — no support
- 3. Yes, many bacteria are harmless or helpful — ← Mova's choice · ✓ the right answer · score 4
- 4. Only if eaten with antibiotics — no support
Why: It took the question to ask which statement is true. It chose option 3 with score 4, the only option with support. Its support: lesson 37, line 1: «Germs are living things too small to see without a microscope. Most bacteria are harmless or even helpful, but some bacteria and viruses get into the body and…», reached through the remembered sentence the question matched. What matched: the same doer «most bacteria» (+2); the same property (+2). · the question and its options parsed, with trees and pragmatics
Test 8 · ★ · right ✓
A girl sneezes into her elbow instead of her hand. Why is that a good idea?
- 1. Her hands will not spread the germs to things she touches — ← Mova's choice · ✓ the right answer · no support
- 2. Hands are needed to cool the sneeze — no support
- 3. Elbows make sneezes quieter for the lungs — no support
- 4. Germs cannot live anywhere on the body — 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 ✗
Which illness can be prevented with a vaccine?
- 1. A broken bone — ← Mova's choice · no support
- 2. Short sight — no support
- 3. Measles — ✓ the right answer · no support
- 4. Tooth decay — 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 ✓
why bother with soap, water washes germs off anyway innit
- 1. Soap just makes the hands smell nice — no support
- 2. Soap breaks the oily layer holding germs, so water can wash them away — ← Mova's choice · ✓ the right answer · score 14
- 3. Soap kills germs only when the water is very hot, otherwise it does nothing — no support
- 4. Water alone removes all germs — score 2
Why: It took the question to ask which statement is true. It chose option 2 with score 14, against 2 for the next best. Its support: lesson 37, line 11: «Soap breaks apart the oily layer that sticks germs to the skin, so water can wash them away.», reached through the remembered sentence the question matched. What matched: the same action «wash away» (+4); its «because» matches the remembered cause (+4); the same doer «water» (+2); the same thing acted on «germs» (+2). · the question and its options parsed, with trees and pragmatics
Test 11 · ★ · right ✓
got the flu jab at school, why'd that help
- 1. It puts the flu in your body forever — no support
- 2. It makes you sleep through the flu — no support
- 3. A vaccine trains the body to fight the germ without getting really ill — ← Mova's choice · ✓ the right answer · score 7
- 4. It kills all the germs in the room — no support
Why: It took the question to ask which statement is true. It chose option 3 with score 7, the only option with support. Its support: lesson 36, line 11: «Vitamin C, found in oranges, lemons, peppers and berries, helps the body heal and fight illness.», reached through the same lesson line as the sentence the question matched. What matched: the same action «fight» (+4); the same doer «body» (+4). Against it: a different thing acted on (counts against) (-1). · the question and its options parsed, with trees and pragmatics
Test 12 · ★ · right ✓
my mum's mate says take antibiotics for a cold. true?
- 1. No, colds are viruses and antibiotics only kill bacteria — ← Mova's choice · ✓ the right answer · score 3
- 2. No, colds are cured by eating sweets — no support
- 3. Yes, they work best on colds and stop them in a single day — score -1
- 4. Yes, antibiotics cure every illness — no support
Why: It took the question to ask which statement is true. It chose option 1 with score 3, against -1 for the next best. Its support: lesson 37, line 16: «Antibiotics kill bacteria but do not work against viruses.», reached through the option's own match among the sentences about the question's things. What matched: the same action «kill» (+1); the same doer «antibiotics» (+1); the same thing acted on «bacteria» (+1). · the question and its options parsed, with trees and pragmatics
Test 13 · ★ · wrong ✗
Ben says all bacteria are bad for you. right?
- 1. No, most are harmless, some even help — ✓ the right answer · no support
- 2. Yes, but only the ones that live in water — no support
- 3. No, bacteria are not alive at all, just dust — no support
- 4. Yes, every single bacterium makes us ill — ← Mova's choice · score 8
Why: It took the question to ask which statement is true. It chose option 4 with score 8, the only option with support. Its support: lesson 37, line 1: «Germs are living things too small to see without a microscope. Most bacteria are harmless or even helpful, but some bacteria and viruses get into the body and…», reached through the remembered sentence the question matched. What matched: the same action «make» (+4); the same doer «bacteria» (+2); the same property (+2). The right option, 1, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Exam question 1 · formal language · right ✓
Which of the following statements most accurately characterises the majority of bacteria?
- 1. Most are harmless, and some are beneficial — ← Mova's choice · ✓ the right answer · no support
- 2. All are harmful and cause disease in people — no support
- 3. All are viruses of a larger size — no support
- 4. None live within the human body — 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 substances that are effective against bacteria but not against viruses.
- 1. Vitamins — ← Mova's choice · no support
- 2. Soap and water alone — no support
- 3. Vaccines — no support
- 4. Antibiotics — ✓ 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 ✓
Which of the following statements most accurately characterises a vaccine?
- 1. It destroys all bacteria within the body — score 7
- 2. It cures a cold once contracted — no support
- 3. It trains the body to combat a germ without serious illness — ← Mova's choice · ✓ the right answer · score 11
- 4. It replaces the white blood cells — no support
Why: It took the question to ask who or what does it. It chose option 3 with score 11, against 7 for the next best. Its support: lesson 37, line 14: «A vaccine trains the body to fight a germ without getting really ill.», 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 (+4); the same doer «vaccine» (+3); the same thing acted on «body» (+3); the same action «train» (+1). · the question and its options parsed, with trees and pragmatics
Exam question 4 · formal language · wrong ✗
State the approximate duration recommended for the washing of hands with soap.
- 1. Twenty minutes — ← Mova's choice · no support
- 2. Twenty seconds — ✓ the right answer · no support
- 3. Two seconds — no support
- 4. Two minutes — 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/world/37-germs-hygiene-vaccines/