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Subjects

Science

Nature and meaning of science

“Nature and Meaning of Science” introduces Class 9 students to science as a systematic way of exploring the natural world, rather than a collection of fixed facts. Within “Exploration: Entering the World of Secondary Science,” students examine how observation, questioning, evidence, measurement, reasoning, experimentation, and communication work together to build scientific knowledge. The topic also highlights curiosity, objectivity, creativity, responsible investigation, and how explanations change when new evidence emerges. It connects science with everyday experiences and prepares learners for inquiry-based study of later concepts.

Hard · Level 2 · 25 questions

Practice questions

01What is the main benefit of providing raw data in a scientific report?

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02If scientists publish only positive results what problem may arise in scientific knowledge?

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03A scientific conclusion makes a claim much broader than the available evidence. What can this be called?

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04What does preferring the simplest adequate explanation in science mean?

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05Which is the best indicator of the strength of a scientific theory?

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06An experimental result contradicted the hypothesis. Which response is closest to a scientific attitude?

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07Why are scientific observations not completely independent of theory?

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08Why can a study with a very large sample still reach a wrong conclusion?

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09Why is drawing a definite conclusion from a single measurement weak?

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10A scientific claim is supported only because a famous person stated it. What logical problem does this involve?

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11Why is an operational definition used in scientific language?

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12Other scientists failed to reproduce a study result. What is the most balanced response?

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13In an experiment the person measuring outcomes knows which sample received treatment. Which risk increases?

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14Why is scientific testing of a supernatural cause for a natural event difficult?

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15A chart shows only selected years to create the impression of an increasing trend. What problem does this illustrate?

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16What is the positive importance of criticism in scientific progress?

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17If one result supports a hypothesis but many results contradict it what should a scientist do?

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18What is the main difference between a scientific prediction and a guess?

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19Why may ethical approval be necessary in a scientific study?

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20Why is stating uncertainty with a scientific conclusion not a weakness?

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21A researcher changed the original hypothesis after the experiment to match the results and presented it as predetermined. What is the main problem?

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22A study reported benefits of a treatment but provided no data about harms. What is the most appropriate scientific response?

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23Why does long acceptance of a scientific idea not make it unchangeable?

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24What can be the main difference between a scientific question and an ethical question?

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25Which is the broadest and most accurate description of the meaning of science?

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