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Alessio_IS3
Alessio_IS3_Chapter 1
Question | Answer |
---|---|
Chemistry | The study of matter and its interactions and changes. |
Matter | Anything that takes up space and has mass. |
Independent Variable | The variable in an experiment that the scientist manipulates. |
Dependent variable | The variable in an experiment that is observed or measured. |
Constant | All variables in an experiment that are not being tested, therefore they do not change. |
Prediction | Simply a statement of what you believe will happen. |
Hypothesis | A statement that attempts to explain why a behavior happens or how natural phenomena relate to one another. |
Precision | Measurements that are consistent with each other. You get a similar result over and over. |
Accuracy | Measurements that match theoretical values or accepted results from previous investigations. |
Scientific Theory | Explains how or why a natural phenomenon occurs. |
Scientific Law | Describes what happens in nature. Usually expressed as a mathematical formula. |
Qualitative | Observations that do not include numbers. Notes about color, texture, heat flow, formation of solid, liquid, or gas etc. |
Quantitative | Data that includes numbers. Actual measurements. |
SI Units | Descriptive units of measurements used in the International System of measurements. |