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Scientific Method
addresses teks 3A-E
Term | Definition |
---|---|
Hypothesis | testable answer to the problem; educated guess; prediction; can be in the form of an "if".... "then"... statement |
Independent Variable | variable that you are changing MIX |
Dependent Variable | Variable that acts in response to the independent variable DRY |
Problem | question you are trying to answer |
Control Group | Comparison group; group that doesn't receive the independent variable |
Constants | Variable that stay the same in an experiment |
Theory | tested explanation of why nature behaves in particular ways (e.g. Big Bang) |
Law | an observation of nature in which there is no known deviation and no assumptions (e.g. gravity always attracts) |
Conclusion | Using the trends and/or data to summarize how your results support or contradict your original hypothesis |
Inference | A conclusion based on data collected |
Observation | Information obtained through the five senses |
Scientific Method | systematic approach used to answer a question or study a situation as well as verify the work of other scientists |
Valid Experiment | An experiment with one independent variable, one dependent variable, all other variables held constant, and multiple trials completed |
Precision | the reproducibility or repeatability of measurements; given multiple trials your data consistent |
Accuracy | how close measured data or calculated quantity is to the actual value (standard/ correct answer) |
Qualitative Data | deals with descriptions; data can be observed but not measured (e.g. colors, textures, smells, tastes, appearance, etc) |
Quantitative Data | deals with numbers; data can be measured (e.g. length, height, area, volume, weight, speed, time, temperature, humidity, sound intensity, age, etc) |