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Ch 1 Chemistry

Chemistry The stud of matter and its composition, structure, properties, and changes.
List the 6 Main branches of Chemistry -Analytical -Inorganic -Theoretical -Biochemical -Orgnic -Physical
Technology Using knowledge to make and use products to improve our quality of life.
Scientific Method a logical series of steps used to solve problems
What are the steps involved in the Scientific Method? -state problem-gather info-hypothesis-conduct controlled experiments-analyze data-draw conclusions-revise and repeat stps as needed
Hypothesis testable predictions, "educated guess"
Variable Factor Factor being tested in an experiment
Controlled Factor Standard of comparison for variable factor
List the 2 types of Data quantitative and qualitative
quantitative measurments (numbers)
qualitative descriptions (words)
Observation fact perceived with the senses
Inference conclusion based on observations
Model Represenation of an abstract idea
Theory explanation for an event tested over times, supported by broad body of evidence, explains observations
Law description of predictable behavior repeatedly observed over time "Rule of Nature"
Created by: hannahcoogan