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Chapter 1 Science

QuestionAnswer
BIAS occurs when a scientist's expectations change how the result of an experiment are viewed
CONSTANT in an experiment,a variable that does not change when other variables change
CONTROL standard used for comparison of test results in an experiment
DEPENDENT VARIABLE factor that changes as a result of changes in the other variables
EXPERIMENT organized procedure for testing a hypothesis; tests the effect of one thing on another under controlled conditions
GRAPH visual display of information or data that can provide a quick way to communicate a lot of information and allow scientists to observe patterns
HYPOTHESIS educated guess using what you know and what you observe
INDEPENDENT VARIABLE factor that, as it changes, affects the measure of another variable
SCIENTIFIC LAW statement about what happens in nature that seems to be true all of the time; does not explain why or how something happens
MASS amount of matter in an object
DENSITY mass per unit volume of material
MODEL can be used to represent an idea, object, or event that is too big, small, complex, or dangerous to observe or test directly
SCIENTIFIC METHOD organized set of investigation procedures that can include stating a problem, forming a hypothesis, researching, and gathering information, testing a hypothesis, analyzing data, and drawing conclusions
SI International System of Units: the improved, universally accepted version of the metric system that is based on multiples of ten and includes the meter, liter, and kilogram
STANDARD exact, agreed upon quantity used for comparison
TECHNOLOGY application of science to help people
THEORY explanation of all things or events that is based on knowledge gained from many observations and investigations
VARIABLE factor that can cause a change in the results of an experiment
VOLUME amount of space occupied by an object
Created by: 100002561877935
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