THEORY VS LAW PAGE 7 OF INB ESSENTIAL

THEORY VS LAW PAGE 7 OF INB

ESSENTIAL QUESTION • Compare scientific law and scientific theory.

SCIENTIFIC LAW • Describes how things work, can be tested by repeated experiments • Allow scientist to predict • Does not explain how, can not change.

SCIENTIFIC THEORY • Are always questioned • Explains an observation clearly and consistently. • Experiments must be repeatable • Must be able to predict results from theory • Can be replaced or changed when new discoveries are made. • New theories are often criticized.

DATA • Qualitative: Data that uses words to describe the observation • When I let go of the pen it fell to the table • Quantitative: Data stated as a mathematical equation or numbers. • F = m a , 12 eggs • Math is the same in every language, used as a standard.

MODELS: • A representation of an object or event that can be studied to understand the real object or event. • Used for things that are too big, too small. • Can be drawing or scale models of things • Computer models: combines lots of data and calculations to make predictions.

LSA PAGE 6 OF INB 1) Theory Same/different Law 2) Describe and give an example of a Scientific model. 3) Categorize Each observation: The Apple is Red The package had a mass of 36 Kg A = ½ m. V 2 The bolt was loose The boy went up the stairs The tree was 16 m tall He purchased a dozen doughnuts The stove felt warm Quantitative Qualitative X