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Ch 1 Chemistry
Question | Answer |
---|---|
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" |