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Lesson 2

Scientific Processes

TermDefinition
Hypothesis a possible explanation or conclusion about an observation. Hypotheses usually are developed once a scientist has made a observation of the phenomenon or event
Theory an idea that has been tested- this allows scientists to make useful and dependable predictions about the natural world
Law theories that have stood the test of time
Scientific Method an organized way of conducting a scientific experiment. It can be summarized by the following steps: 1)Make an observation and state a question, 2) Form a hypothesis, 3) Test hypothesis, 4) Record and analyze data, 5) Form a conclusion, 6) Replicate work
Variable factor that can be changed and tested in an experiement
Experimental Group the group in a scientific experiment that has the independent variable applied to it
Control Group the part of a scientific experiement that does not have the independent variable applied to it
Controlled Variables variables that are controlled or known in a scientific experiment
Independent Variable the variable that scientists change in an experiment- it is also known as the manipulated variable
Conclusion A determination of whether or not the hypothesis was valid. This statement can lead to more questions and another set of hypotheses and experiments
Metric System The measurement system that all scientists use
Length the measurement between two points, usually in meters
Volume the amount of space an object occupies
Mass the measure of the amount of matter within an object
Created by: ecotteacher
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