Changes and Bias (Leaving Cert Biology): Flashcards

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Changes and Bias
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How does scientific knowledge change over time?

Constantly evolves, not fixed or permanent

How scientific ideas change

Through revision, modification, and updating

Pattern of the scientific method

Circular or repetitive, not straight line

Definition of bias

Unfair, unreasoned, or personal judgement

How to verify scientific sources

Check for valid links or references

Warning sign of biased media

Emotional headlines or language

Why check author's background

To determine qualifications and expertise

Sign of credible scientific findings

Reported across multiple reputable sources

Limitation of science: Prior knowledge

Scientists need existing knowledge to design experiments

Limitation of science: Investigation quality

Results depend on properly designed and executed experiments

Why scientific knowledge about organisms changes

Living organisms constantly change through evolution

How Fleming discovered penicillin

Accidentally left petri dish uncovered, fungus contaminated it

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