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Chemistry Intro :( :0
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what is chemistry? (2 things)
1. The study of matter and its transformations
2. The study of connections between molecular and macroscopic events
why study chemistry? (4 things: Lanie grabs delicious apple)
learn fundamental physical models
gain technical perspective on current events
develop problem solving skills
appreciate life's little mysteries
The scientific method is:
a systematic procedure for solving problems and exploring natural phenomena
Observations(data)
Observations (data) are the foundation of the scientific method
True or False
True
False
True
Data is:
qualitative or quantitative
and most useful when collected under controlled conditions.
Experiments must be repeatable and reproducible
True or False
True
False
true
Natural Laws-
do what?
apply when?
are what?
compactly summarize patterns in a large amount of data
often apply only under special conditions
are descriptions of nature, not facts or explanations.
Does a useful Hypothesis have to be testable? Y/N
Yes
What are tentative explanations designed to guide experimentation?
Hypotheses
When Hypotheses conflict with experiments, they must be- rejected or corrected
either
What is a well tested explanation for experimental data based on a set of hypotheses?
Theory
When must a theory be discarded or refined?
when it can't explain new experimental results.
What are the three aspects of scientific theories?
philosophical, mathematical, and empirical.
UNDERSTAND ALL THREE OR RISK MISUSING THE THEORY
a good theory does what five things? (ellie is after some cavemen)
-explains currently available data
-is as simple as possible (but no simpler!)
-accurately predicts results of future experiments
-suggests new lines of work and new ways to think
-clearly shows underlying connections
Many important scientific discoveries were not arrived at using the scientific method, but with serendipity and intuition. True or False
True
False
True
Examples of discoveries arrived at with serendipity and intuition.
vulcanization of rubber by Charles Goodyear
Teflon
Plastics
Saccharin
Microwave ovens
Author
adavis6
ID
38696
Card Set
Chemistry Intro :( :0
Description
chemistry intro scientific method
Updated
2010-09-30T16:37:34Z
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