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Biology Review #5

TermDefinition
Problem / Question An inquiry of a phenomenon. Example - How much fertilizer is the best for my plants?
Hypothesis An answer to the question as a prediction. Example - A moderate amount of fertilizer is best.
Experimental Procedure Must contain a control, a single variable to be tested, multiple trials or test subjects, and measurable data.
Control The subject to which your experiment will be compared. Example - Plant without fertilzer.
Experimental Subject Example - Several plants with varying amounts of fertilizer.
Independent Variable What I am changing. Example - Amount of fertilizer.
Dependent Variable What I am measuring. Example - Height.
Data Something that can be quantified or measured. Examples - Height, size, & number of leaves.
Analysis Interpretation of data. Example - Graph of independent on the x-axis vs. dependent variable on the y-axis.
Scale Should be REGULAR & CONSTANT, labeling the origin with zero if possible. If the data range begins with a larger number, it is ok for the origin to start with something other than 0.
Data Points When connecting data points, DO NOT extend the line to zero, unless it is a data point. DO NOT plot data that is not there.
Conclusion Is where you come to a resolution if your data supports or refutes your hypothesis.
Relationship Can be direct - as X increases, so does Y Can be indirect - as X increases, Y decreases
Variables To Be Kept Constant Examples - Same type of plant, amount of water, amount of light, same soil, & same type of fertilizer.
Created by: tderue
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