INTRODUCTION TO CHEMISTRY

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Presentation transcript:

INTRODUCTION TO CHEMISTRY Unit 1

CHEMISTRY the study of the composition of matter types of chemistry Biochemistry Organic Inorganic Physical Analytical

SCIENTIFIC METHOD logical approach to the solution of scientific procedures: Observation Hypothesis Experiment Theory

SCIENTIFIC METHOD logical approach to the solution of scientific procedures: Observation – use senses to obtain information directly Hypothesis – educated guess as to what you have observed

SCIENTIFIC METHOD logical approach to the solution of scientific procedures: Experiment – the means to test a hypothesis Theory – broad and extensively tested explanation of WHY expts give certain results

SCIENTIFIC METHOD Observation Hypothesis Experiments THEORY

THEORIES can never be proven may be disproved by another experiment can predict the behavior of a natural system

SCIENTIFIC LAWS concise statements that summarize the results of many observations and experiments explain WHAT not why can be expressed as mathematical relationships