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Chapter 1 Vocabulary

Introduction to Science

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.
Created by: cjcarter