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Chapter 1 Vocabulary
Introduction to Science
Term | Definition |
---|---|
Science | The knowledge obtained by observing natural events and conditions in order to discover facts and formulate laws or principles that can be verified or tested |
Technology | The application of science for practical purposes |
Scientific LAW | A summary of many experiment results and observations; a law tells HOW things work. |
Scientific THEORY | An explanations for some phenomenon that is based on observation, experimentation, and reasoning; a theory explains the WHY |
Scientific METHOD | A series of steps followed to solve problems including collecting data, formulating a hypothesis, testing the hypothesis, and stating conclusions. |
Variable | A factor that changes in an experiment in order to test a hypothesis. |
Length | A measure of the straight-line distance between two points. |
Mass | A measure of the amount of matter in an object. |
Volume | A measure of the size of a body or region in 3D space. |
Weight | A measure of the gravitational force exerted on an object. |
Scientific Notation | A method of expressing a quantity as a number multiplied by 10 to the appropriate power. |
Precision | The exactness of a measurement |
Accuracy | A description of how close a measurement is to the true value of the quantity measured. |
Applied Science | Task of searching for ways to use scientific knowledge for practical applications |
Pure Science | Continuing search for scientific knowledge |
Technology | Application of science for practical purposes (applied science) |
Qualitative Statement/Measurement | Description of observations using word and explanations |
Quantitative Statement/Measurement | Description of observations using numbers and math. |
Hypothesis | Possible answer to a question that can be tested by experiment. |
Manipulated Variable | Variable in the experiment that is changed (on purpose)... only 1 per test |
Responding Variable | Variable in the experiment that is measured (based on what is changed)... only 1 per test |
Controlled Variable | All aspects and variables of an experiment that are NOT changed; kept constant. |
Line Graph | An appropriate display of data when measured over a change in time. |
Bar Graph | An appropriate display of data when measured at multiple comparisons. |