Theory, hypothesis, and law

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Beth Roland Eighth Grade Science JFMS
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Presentation transcript:

Theory, hypothesis, and law The Nature of Science Theory, hypothesis, and law

Hypothesis *Based on background observations and knowledge *(If/then statement – causal or correlational relationship *Educated Guess

SCIENTIFIC LAWS based on repeated experimental observations describing some aspects of the universe. Applies under same conditions Implies causal relationship EQUATION

Example Law of Gravitational Force: represented by an equation F = G × [(m1m2)/r²]F = G × [(m1m2)/r²] Kepler’s Law of Planetary Motion

https://www.youtube.com/watch?v=E43-CfukEgs

THEORY A Principle supported by evidence – lots and lots includes Factual evidence, proven hypothesis, laws of nature Theory never becomes a law- have separate roles in science – a law can strengthen a theory

Examples of Theory Big Bang Theory Theory of heliocentricism Theory of Evolution Theory of relativity

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