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Nature of Science Review
Transcript of Nature of Science Review
Theories - Laws
Theories and Laws are the result of
a large body of empirical evidence.
They are widely-accepted, based on evidence, found by the scientific method, testable, changeable and able to be replicated.
representation of a real phenomenon that is difficult to observe directly
Charts and graphs are used to analyze data (information).
Data is results of an experiment.
Evidence is proof/support of a hypothesis.
RESEARCH (BACKGROUND INFO)
ANALYSIS (ANALYZE DATA)
Explain WHY something happens
Lengthy (long) and detailed
Often written as a mathematical equation
Short and concise
(control group vs. experimental group)
Only ONE type of scientific study
Most valid type of study
change only one
at a time to ensure validity
measures the effect on the
stay the same to keep fair/valid
Big Bang Theory
Based on observations
Based on facts
Law of Motion
Law of Gravity
multiple trials in an experiment
duplicate experiment by another person
Always discuss possible sources of error.
Follow procedures and use correct materials.
Test 1 independent variable at a time.
Use of control group to compare without I.V.
Accurate measurements and calculations
Eliminate bias (favoritism/prejudice)
Are the results valid?