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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.

Expert · Level 2 · 25 questions

TOPIC PRACTICE

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25 questions

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  1. Independence eliminated every error
  2. A shared systematic error may affect all results
  3. The result must be correct
  4. Reproducibility has no value
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  1. Precision
  2. Overgeneralisation
  3. Calibration
  4. Double-blind testing
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  1. A clear condition should be stated under which the claim would be unsupported
  2. More difficult language should be used
  3. The sample should be reduced
  4. The experiment title should be changed
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  1. Consent must only be written
  2. Informed consent requires relevant information to be provided
  3. Explaining risks makes the experiment invalid
  4. Participants' views are unscientific
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  1. Hide the financial relationship
  2. Disclose the conflict of interest and seek independent review
  3. Reject the study without reading it
  4. Assume the result is correct
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  1. Consistency within that age group
  2. Generalisation to all age groups
  3. Repeatability of measurement
  4. Description of the method
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  1. Old ideas disappear automatically
  2. Review replication and new evidence can identify and correct errors
  3. Every scientist is unbiased
  4. Science never makes mistakes
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  1. The original data are wrong
  2. The presentation may cause misleading interpretation of correct data
  3. Graphs are not part of science
  4. The difference automatically proves causation
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  1. Whether the studies and methods are sufficiently comparable
  2. Whether all titles are identical
  3. Whether all scientists are from one country
  4. Whether the average is a whole number
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  1. Absence of contrary evidence is not automatically evidence for the claim
  2. Every claim should be treated as false
  3. Contrary evidence is never necessary
  4. Scientific claims are established only by popularity
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  1. Consistency and validity of measurement were weakened
  2. The independent variable disappeared
  3. The control group became larger
  4. The result became more objective
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  1. Subgroups or unusual variation in the data
  2. Topic of the experiment
  3. Name of the instrument
  4. Scientist's signature
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  1. Explanatory breadth alone is sufficient
  2. Testability is required along with explanatory power
  3. Difficult testing automatically makes the theory true
  4. The theory should be accepted without evidence
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  1. Remove the data immediately
  2. Check whether removal follows a predefined scientific reason
  3. Treat the effect as proved
  4. Do not publish the original data
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  1. Expert selection bias
  2. Measurement accuracy
  3. Random assignment
  4. External validity
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  1. Choose the more popular side
  2. Compare the quality methods and completeness of the data
  3. Treat both as equally true
  4. Reject all data
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  1. The result may depend on selective analysis choices
  2. The result is more universal
  3. The sample automatically became larger
  4. Instrument precision increased
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  1. Initial differences may influence the final outcome
  2. Control groups have no use
  3. The dependent variable is always constant
  4. The treatment automatically becomes ineffective
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  1. A simple model is always wrong
  2. The model may be useful but omitted assumptions and limitations must be examined
  3. Complex systems cannot be modelled
  4. Simplicity is more important than evidence
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  1. An incomplete or flawed claim may spread quickly
  2. The review will automatically improve
  3. The sample size will increase
  4. The claim will become a scientific law
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  1. The evidence suggests the possibility of the result
  2. The result is certain in every condition
  3. All alternative explanations are false
  4. No further investigation is needed
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  1. Yes because the analysis was repeated
  2. No because no new independent data were collected
  3. Yes because the result was the same
  4. No because data analysis is not science
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  1. Scientific evidence automatically determines the ethical decision
  2. Factual conclusions and value-based decisions may be distinct but related
  3. Ethical disagreement makes the scientific evidence false
  4. Science has no relation to society
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  1. Because science includes processes of questioning testing criticism and revision along with knowledge
  2. Because scientific discoveries are not real
  3. Because science contains no facts
  4. Because only experiments are science
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  1. A final collection of unchangeable answers about nature
  2. A systematic and collective knowledge endeavour developed through evidence reasoning imagination testing review and revision
  3. A collection of controlled experiments only
  4. Agreed beliefs of famous scientists

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