---
title: Being a scientist — fair tests, guesses and evidence — the lesson's questions with trees and pragmatics · World
description: The 17 test and exam questions of lesson 91 «Being a scientist — fair tests, guesses and evidence» of the world course of Mova's primary school, each with its options, Mova's choice and the right answer, every sentence with its dependency tree and pragmatics.
---

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# Being a scientist — fair tests, guesses and evidence

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The 17 questions of lesson 91 «Being a scientist — fair tests, guesses and evidence» of the world course of Mova's primary school with their options, 94 sentences, every one parsed by Mova with its syntax tree and pragmatics. How the student did on them: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/world/91-being-a-scientist/).

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- [t1](https://md.mova.elamur.ai/free/en/corpora/questions/world/91-being-a-scientist/t1/) — Lily tests two paper planes, but one is bigger and she throws it harder. Why is this not a fair test? — right ✓ · ★★★
- [t2](https://md.mova.elamur.ai/free/en/corpora/questions/world/91-being-a-scientist/t2/) — A boy wears his lucky socks and wins a race. He says the socks made him win. What is wrong with his thinking? — wrong ✗ · ★★★
- [t3](https://md.mova.elamur.ai/free/en/corpora/questions/world/91-being-a-scientist/t3/) — Ana tests a new plant food on one plant, which grows well. What would make her result more convincing? — right ✓ · ★★★
- [t4](https://md.mova.elamur.ai/free/en/corpora/questions/world/91-being-a-scientist/t4/) — Which is the best reason to trust a scientific result? — right ✓ · ★★★
- [t5](https://md.mova.elamur.ai/free/en/corpora/questions/world/91-being-a-scientist/t5/) — Ben predicts that heavier balls fall faster. He drops a heavy and a light ball of the same size and they land together. What should he conclude? — wrong ✗ · ★★★
- [t6](https://md.mova.elamur.ai/free/en/corpora/questions/world/91-being-a-scientist/t6/) — To test whether sugar dissolves faster in hot water, what is the fair way? — wrong ✗ · ★★★
- [t7](https://md.mova.elamur.ai/free/en/corpora/questions/world/91-being-a-scientist/t7/) — In a town, children who own more books get better marks. What could explain this other than the books themselves? — wrong ✗ · ★★★
- [t8](https://md.mova.elamur.ai/free/en/corpora/questions/world/91-being-a-scientist/t8/) — Two pupils measure the same jump and get very different numbers. What should they do first? — right ✓ · ★★★
- [t9](https://md.mova.elamur.ai/free/en/corpora/questions/world/91-being-a-scientist/t9/) — Why does a scientist keep a control group in a medicine test? — right ✓ · ★★★
- [t10](https://md.mova.elamur.ai/free/en/corpora/questions/world/91-being-a-scientist/t10/) — my bean plant grew loads when i sang to it, so singing works? — wrong ✗ · ★★★
- [t11](https://md.mova.elamur.ai/free/en/corpora/questions/world/91-being-a-scientist/t11/) — gonna test which paper towel soaks up most, what do i keep the same — wrong ✗ · ★★★
- [t12](https://md.mova.elamur.ai/free/en/corpora/questions/world/91-being-a-scientist/t12/) — Mia says if ur prediction is wrong the experiment failed. true? — right ✓ · ★★★
- [t13](https://md.mova.elamur.ai/free/en/corpora/questions/world/91-being-a-scientist/t13/) — a video said ice cream sales and sunburn go up together, so ice cream gives u sunburn. right? — right ✓ · ★★★
- [e1](https://md.mova.elamur.ai/free/en/corpora/questions/world/91-being-a-scientist/e1/) — Which of the following statements most accurately characterises a fair test? — right ✓ · exam
- [e2](https://md.mova.elamur.ai/free/en/corpora/questions/world/91-being-a-scientist/e2/) — Identify the purpose of a control group in an experiment. — right ✓ · exam
- [e3](https://md.mova.elamur.ai/free/en/corpora/questions/world/91-being-a-scientist/e3/) — It is given that two things are observed to occur together. Determine the conclusion which may properly be drawn. — right ✓ · exam
- [e4](https://md.mova.elamur.ai/free/en/corpora/questions/world/91-being-a-scientist/e4/) — Select the response that is consistent with the established facts concerning the conduct of scientists confronted with good new evidence. — right ✓ · exam

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