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Scientific Method8

vocabulary practice

hypothesis possible explanation for a set of observations or possible answer to a scientific question
experiment the act of conducting a controlled test or investigation
conclusion a summary of the results of the experiment and a statement of how the results relate to the hypothesis
observation use of one or more of the senses to gather information
problem a question raised for consideration or solution
scientific method a series of steps followed to solve problems including collecting data, formulating a hypothesis, testing the hypothesis, and stating conclusions
variable something in an experiment that can change
independent variable Factor in an experiment that researchers manipulate so that they can determine its effect
controlled variable A variable that is not changed
dependent variable The outcome factor; the variable that may change in response to manipulations of the independent variable.
line graph A graph that uses line segments to show changes that occur over time
bar graph a graph that uses horizontal or vertical bars to display data
pie graph a graph that best shows part of a whole
control group provides a normal standard against which the biologist can compare results of the experimental group
experimental group in an experiment, the group that receives the experimental treatment
Created by: amyshirey