THEORY vs. LAW.

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Beth Roland Eighth Grade Science JFMS

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Presentation transcript:

THEORY vs. LAW

HYPOTHESIS An educated prediction that can be tested A decisive statement Test one variable

SCIENTIFIC THEORY Explains how or why nature works- provides reasons (EXPLANATION) Well-tested Supported by data Widely accepted by sci. community Often changing (dynamic) Complex

Examples of Theories Plate tectonic theory Dino extinction theory Big Bang Theory Climate change theory evolution

That’s pretty darn good! “It’s Only a Theory” That’s pretty darn good!

https://www.youtube.com/watch?v=lqk3TKuGNBA

SCIENTIFIC LAW Describes what nature does under certain conditions (DESCRIPTION) Well tested- widely accepted Supported by data Stated briefly Often math equations

Examples of Laws Newton’s Laws of Motion Hubble's Law (galaxy motion) Kepler’s law of planetary motion Law of crosscutting relations (age of rocks) The term “law” is rarely used anymore

Which is better? Neither!

Which is more true? Neither!

Theories do not turn into laws!

https://www.youtube.com/watch?v=zGgIdrD20do