Scientific Method Process Skills And Experiment

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Science

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a systematized way of gathering and organizing information about the natural world comes from the Latin word Scire which means ''to know''

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life science

Back 2

-the study of living things and their relationship to one another and to their environment

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scientific method

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-the logical series of steps used by scientists to solve problems

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The steps of the scientific method

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(a) state the problem

(b)research the problem

(c) form a hypothesis

(d) design an experiment to test the hypothesis

(e) observe,record, and analyze data

(f)State a conclusion

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Infer

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- to find out by a process of reasoning from something known or assumed to suggest a possible explanation for an observation can make more than one inference to explain the same observation

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Predict

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- to state what you think might happen in the future to; forecast predictions are based on previous knowledge,past experiences, and observations

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Hypothesis

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- an educated , scientific guess that tries to explain how and why an event happened

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Experiment

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- a process designed to provide observations under carefully controlled conditions

a test for a hypothesis

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Procedure

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- the specific set of instructions or directions followed when doing an experiment

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Conclusion

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- the end result of an experiment based on observations and the analysis

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Controlled Experiment

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- an experiment with two test groups, an experimental group and a control

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Control

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- the standard for comparing experimental effects

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Variable

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- the part of an experiment being tested

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Independent (manipulative) variable

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- the variable that is purposely change by the experimenter

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Levels of the independent variable

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- the specific values of the IV that are tested in an experiment

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Dependent (responsive) variable

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- the variable that responds to changes in the IV

Y-axis

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Constants

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- all experimental factors that remain the same and have a fixed value

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Trial

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- a complete experimental run including testing all levels of the independent variable

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Repeated Trials

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- the numbers of experimental repetitions, objects, or organisms tested at each level of the independent variable

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Data

Quantitative data

Qualitative data

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- record observations(facts and figures)about an event

- information gathered from counts or measurements,using a scale with equal interval

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Analyze

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- to study data for patterns or trends

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Observe

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- to take notice of things around you, using all available senses

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Estimate

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- to suggest or judge the measure, value or amount of something context words that often precede an estimate: approximately, about,almost,probably, likely

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Measure

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- to determine or describe the amount of an observation in exact units

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Classify

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- to arrange things into groups based on similar characteristics

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Theory

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- a proven hypothesis supported by many experiments and consistent data

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Scientific Law

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- a theory dealing with events governing the universe or describing a pattern in nature that has been upheld for many years and is accepted as fact