Chemistry: An Introduction
- To understand the importance of learning chemistry.
What is Chemistry?
- To define chemistry.
- Chemistry can be defined as the science that deals with the materials of the universe and the changes that these materials undergo.
Solving Problems Using a Scientific Approach
- To understand scientific thinking.
- Make an observation- recognize the problem and state it clearly.
- Formulate a hypothesis- propose possible solutions to the problem or possible explanations for the observation.
- Perform an experiment- decide which of the solutions is the best or decide whether the explanation proposed is reasonable by seeking new information.
The Scientific Method
- To describe the method scientists use to study nature.
- Steps in the scientific method:
- State the problem and collect data (make observations.)
- Formulate hypotheses.
- Perform experiments.
- A law tells what happens; a theory (model) is an attempt to explain why it happens.
- Steps in the scientific method:
- Key Terms
- Chemistry- the science that deals with the materials of the universe and the changes that these materials undergo
- Measurement- a quantitative observation
- Hypothesis- a possible explanation for an observation
- Experiment- a test of a hypothesis
- Theory (model)- a set of tested hypotheses that gives an overall explanations of some part of nature; an interpretation of why nature behaves in a particular way
- Natural Law- a formulation of generally observed behavior
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