Making Science Graphs and Interpreting Data. Scientific Graphs Most scientific graphs = Lines on scientific graphs –Straight –Curved –Best-fit lines –No.

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Presentation transcript:

Making Science Graphs and Interpreting Data

Scientific Graphs Most scientific graphs = Lines on scientific graphs –Straight –Curved –Best-fit lines –No connect the dots

Directly Proportional and Inversely Proportional Graphs Directly ProportionalInversely Proportional

Predicting Data on a Graph Trends Predicting data: –Extrapolate –Interpolate

How to Construct a Line Graph 1.Identify the variables a.Independent variables x–axis (horizontal) Left side of a data table b.Dependent variables y–axis (vertical) Right side of a data table 2. Determine the scale of the Graph a.Scale = numerical value for each square b.Use MOST of the available space

How to Construct a Line Graph 3.Number and Label Each Axis –Tells what the lines on your graph represent –Label each axis with appropriate units. 4.Plot the Data Points –plot each data point with a dot 5.Draw the Graph –Draw a curve or line that best fits the data points. –Most graphs are not “connect the dots” 6.Title the Graph –Your title should clearly tell what the graph is about. –If > one set of data  provide a key

What do you think about this table?

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Graphing Practice Problem #1a Time (seconds)Distance (meters) A.Graph the data. B.What does the graph represent?

Graphing Practice Problem #1b A. What type of motion does this graph represent? B. Put the data from this graph into a table.

Graphing Practice Problem #1c A.Describe what happens during the time represented by this graph. B. Put the data from this graph into a table.