1. Do Now Hand in your signed Lab Rules form What part of the scientific method do you think is the most important?

2. GRAPHS

3. Types of Graphs Bar Graphs Line Graphs Pie Graphs

4. Bar Graph A chart with rectangular bars with lengths proportional to the values that they represent. Used for comparing two or more values.

5. Line Graph A graph that uses points connected by lines to show how something changes as time goes by.

6. Pie Graph A circular chart divided into sections based on percentages. It shows parts of a whole.

7. Which Graph? Given the following sets of data, decide which of the three types of graphs would be most appropriate to display the data.

8. 32% of Americans, 12% of Lithuanians, 21% of Germans, 27% of Spaniards, and 8% of others have gained more than 30 pounds in the past four years. What graph should we use? Answer: A Pie Graph!

9. We want to compare the total revenues of five different companies. What graph should we use? Answer: Bar Graph!

10. We want to compare populations of pandas over the past seven years. What graph should we use? Answer: Line Graph!

11. Graph This Data Rate of plant growth over time Day135791113151719 Height in cm 23711131516182225

12. Graph This Data Sports Preference Football = 28 students Soccer = 12 students Basketball = 55 students Baseball = 32 students Tennis = 7 students