Direct Relationship, As X increases Y increases, Indirect Relationship, As X increases Y decreases, No Relationship, As X increases Y remains the same, Cyclic Relationship, As X increases Y repeats, Independent Variable, What you control, goes on X axis, Dependent Variable, What you measure, goes on Y axis, Range, change in Y, Wavelength, distance from crest to crest or trough to trough, Crest, top of a wavelength, Trough, bottom of a wavelength, Frequency, number of time a wavelength repeats in a given time, High Frequency, short wavelength, many wavelengths is a small area, Low Frequency, long wavelength, few wavelengths in an area, Origin, Point of rest between crest and trough (halfway), Ampiltude, Distance from rest to crest or trough, Observation, description of the environment using any of the five senses, Inference, A conclusion based on observations, Find data not measured, Intersect the line on your graph and go across to find the unknown, Patterns & Trends, Are easier to see after making graphs, Units, Numbers in science must have these

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