You Can Do It!!!

Graphs in Science

GraphA picture of your data that reveals patterns

or trends that words or data tables cannot.

Bar Graphs

Line Graphs

Cool

Yes Science Rules

Line GraphsAre used to display data to show how one

variable (DEPENDENT VARIABLE) changes in response to another variable (INDEPENDENT VARIABLE).

Plotting a line Graph1. Draw the axes

Horizontal axis (x-axis): Independent VariableVertical axis (y-axis): Dependent Variable

2. Label the axes: Independent Variable (x ) and Dependent

Variable (y)Include UNITS of Measure

3. Create a scaleNeeds to cover the ranges of values from

your dataSpace numbers equally along axes

Plotting a line Graph4. Plot the data

Using coordinate pairs (data)Data Point: the point showing the location of

the coordinate pairs5. Draw a line of BEST FIT

A smooth line that reflects the general pattern of a graph

6. Add a titleIdentify the variables or relationship shown in

the graph.

Line of best FitEmphasizes the overall trend shown by all the data taken as a whole

SlopeThe slope of a graph line tells you how

much y changes for every change in x.