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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) are the foundation of the scientific method
True or False
- qualitative or quantitative
- and most useful when collected under controlled conditions.
Experiments must be repeatable and reproducible
True or False
- 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
What are tentative explanations designed to guide experimentation?
When Hypotheses conflict with experiments, they must be- rejected or corrected
What is a well tested explanation for experimental data based on a set of hypotheses?
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
Examples of discoveries arrived at with serendipity and intuition.
- vulcanization of rubber by Charles Goodyear
- Microwave ovens