1. U NIT 1 S CIENCE AND T ECHNOLOGY L ESSON 3 G RAPHS IN S CIENCE Essential Questions: What kinds of data do data tables, line graphs and bar graphs display? Why are data tables, line graphs and bar graphs powerful tools?

2. An arrangement of information Data table in labeled rows and columns.  Data tables help you record observations and interpret information.  They are an orderly way to record information.

3. Create Data Tables Suppose that your class decides to sponsor a Scrabble ® competition to raise money. You’ll ask people to pay $1.00 each to play. The money will go to a charity that your class has chosen. To keep track of the results, all players will have official score cards that show the five scrabble games they play. They will keep track of their wins and losses. The easiest way to show all that information would be in a data table. Title? Column heading/s? Row heading/s? Units?

5. A graph that is a good choice Bar graph to use when the manipulated variable is not a number and the data is not continuous

6. Bar graphs must include:  A title  A labeled horizontal axis with qualitative groups  A labeled vertical axis with a scale  Shaded bars Title Labeled vertical axis with a scale Labeled horizontal axis with groups Shaded bars

7. 1.What is the manipulated variable and responding variable in the graphs? 2.In bar graph A, which school has the largest number of students? 3.In bar graph B, why are the bar graphs shaded different colors?

8. A graph that displaysLine graph data that shows how one variable (responding) changes in response to another variable (manipulated)  Line graphs allow you to identify patterns and make predictions

9. Labeled vertical axis (responding) A scale Labeled horizontal axis (manipulated) Line graphs must include:  A title  A labeled horizontal axis (manipulated variable)  A labeled vertical axis (responding variable)  A scale  Data points Data points Title

10. A line graph in whichLinear graph the data points form a straight line A line graph in which Nonlinear graph the data points do not fall along a straight line

11. Is the graph linear or nonlinear?