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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

TOPIC PRACTICE

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25 questions

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  1. Others can verify the analysis
  2. The report becomes shorter
  3. The hypothesis automatically becomes correct
  4. All errors disappear
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  1. Publication bias
  2. Zero error
  3. Classification benefit
  4. Control improvement
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  1. Overgeneralisation
  2. Accurate classification
  3. Controlled measurement
  4. Independent verification
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  1. Choosing the shortest statement without evidence
  2. Choosing the explanation that fits evidence with fewer unnecessary assumptions
  3. Complex explanations are always wrong
  4. Simple explanations are always true
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  1. It explains only past results
  2. It explains diverse evidence and makes testable predictions
  3. It is popular
  4. It is written in difficult language
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  1. Change the data
  2. Recheck both the experiment and hypothesis objectively
  3. Treat the hypothesis as correct regardless
  4. Hide the unusual result
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  1. Because scientists observe nothing
  2. Prior knowledge can influence what is measured and how it is interpreted
  3. Because all theories are wrong
  4. Because instruments are always biased
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  1. A large sample is always wrong
  2. The sample may be biased or measurement may be flawed
  3. Large samples contain no data
  4. Sample size has no importance
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  1. A single measurement may be affected by random error or an unusual value
  2. A single measurement is always zero
  3. Measurement is not part of science
  4. Conclusions are formed only from opinion
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  1. Improper reliance on authority
  2. Controlled testing
  3. Reproducibility
  4. Measurement accuracy
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  1. To state a clear method for measuring or identifying a concept
  2. To make a term more difficult
  3. To hide the hypothesis
  4. To make all concepts identical
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  1. The original study is certainly fraudulent
  2. Methods conditions and data need examination
  3. Reproduction has no importance
  4. The other scientists are always wrong
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  1. Observer bias
  2. Increase in sample size
  3. Zero calibration
  4. Independent verification
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  1. It is always false
  2. It may be difficult to derive clear testable predictions
  3. Science occurs only in laboratories
  4. Natural events cannot be measured
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  1. Misleading conclusion through selective presentation
  2. Correct classification
  3. Controlled experiment
  4. Independent variable
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  1. It helps identify weaknesses in evidence and method
  2. It prevents scientists from questioning
  3. It destroys every theory
  4. It increases popularity
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  1. Select only the supporting result
  2. Re-evaluate the hypothesis by considering the weight of all evidence
  3. Delete contradictory results
  4. Declare the hypothesis a law
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  1. A prediction is based on supported patterns or models
  2. A guess is always correct
  3. A prediction has no uncertainty
  4. Both are exactly the same
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  1. To ensure participants' safety rights and consent
  2. To make the result certain
  3. To eliminate every risk
  4. To prove the hypothesis correct
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  1. It honestly represents the limits of evidence
  2. It proves the conclusion wrong
  3. It removes the need for measurement
  4. It is merely a writing style
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  1. The hypothesis was not recorded transparently
  2. The sample was too large
  3. The instrument was too precise
  4. A control group was present
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  1. Assume the treatment is completely safe
  2. Ask for evidence about both benefits and risks
  3. Reject the study immediately
  4. Promote only the benefits
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  1. New evidence can refine or limit the old idea
  2. All old ideas are wrong
  3. Time has no relation to science
  4. Acceptance is more important than evidence
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  1. A scientific question tests facts through evidence while an ethical question may involve value judgements about right and wrong
  2. Ethical questions involve no reasoning
  3. Scientific questions involve no evidence
  4. Both always give identical answers
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  1. A final collection of fixed facts
  2. A systematic human process of evidence reasoning testing revision and communication to understand nature
  3. Only the use of laboratory instruments
  4. A collection of personal experiences

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