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sci method ag

vocab.

TermDefinition
scientific method organized st of investigation procedures that can include stating a problem, forming a hypothesis, researching and gathering information, testing a hypothesis, analyzing data, and drawing conclusions.
hypothesis educated guess using what you know and what you observe.
experiment organized procedure for testing a hypothesis; tests the effect of one thing on another under controlled coditions.
variable factor that can cause a change in the results of an experiment.
dependent variable factor that changes as a result of changes in the other variables.
independent variable factor that, as it changes, affects the measure of another variable.
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.
bias occurs when a scientist's expectations change how the results of an experiment are viewed
model can be used to represent an idea, object,or event that is too big, to small, to complex, or too dangerous to observe or test directly.
theory explanation of things or events that is based on knowledge gained from many observations and investigations.
scientific law statement about what happens in nature that seems to be true all the time; does not explain why or how something happens.
technology application of science to help people.
standard exact, agreed-upon quantity used for comparison.
SI International system of units - the improved, universally accepted version of the metric system that is vases n multiples of ten and includes the matter based on multiples of ten and includes the meter (m), liter (L), and kilogram (kg).
volume amount of space occupied by an object.
mass amount of matter in an object
density mass per unit volume of a material.
Created by: analizagarza
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