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Unit 0

Scientific Method

TermDefinition
Observation Looking at something carefully or in order to gain information.
Inference An educated guess or conclusion you make by combining clues you see or read with things you already know.
QuaNtitative Observation Involves NUMBERS, or an amount. (2 text messages on your phone)
Qualitative Observation Physical traits, behaviors, and qualities. The bike is blue, The grapes tastes sour.
Controlled Variable A variable that's held constant in a experiment
Hypothesis An educated guess. Includes an Independent and Dependent Variable. “If, then” statements
Independent Variable (I change) Controlled by the experimenter; predetermined before the experiment begins. (Giving vitamins to a baby cow)
Dependent Variable (Date) Measured variable. Data the experimenter collects. Result of the change in the independent variable.(The weight of the cow)
Experiment Carefully designed steps to test a hypothesis
Conclusion Information obtained to decide if the hypothesis was supported or not supported
Peer Review Colleagues examine experiment from an experimenter
Control Group The group in an experiment that does not receive the new treatment or change.
Conversion Factors Ratio of units; it shows the numerical relationship between units.
Data Tables & Graphs Visually organize data and allow you to easily observe (see) trends.
Dimensional Analysis A method to convert from one unit of measurement to another.
Experimental Group The test group in a scientific study that receives the specific treatment, change, or independent variable being tested.
Sample Size The total number of individuals chosen for a study or survey.
Scientific Method A step-by-step way to solve problems and answer questions about the world
X-Axis Independent variable; controlled by the experimenter; predetermined before the experiment begins.
Y-Axis Dependent variable; measured variable; data the experimenter collects; result of the change in the independent variable.
Created by: user-1736732
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