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# Presenting scientific data graphing

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### Presenting scientific data graphing

1. 1. Do Now: • What step in the Scientific Method includes presenting data?
2. 2. Presenting Scientific Data Graphing
3. 3. To be the most useful, scientific data should be organized. • Data is most often plotted in graphs because a graph makes it easy to observe trends. • The most commonly used graphs are line graphs, bar graphs, and circle graphs.
4. 4. Line graphs • Line graphs are used for showing changes in related variables. The manipulated variable is plotted on the (x) axis while the responding variable goes on the (y) axis.
5. 5. Line graphs • When both variables increase, it is called a direct proportion.
6. 6. Line graphs • If one variable increases while the other decreases, it is called an inverse proportion.
7. 7. Bar Graphs • Bar graphs are used when you want to compare data that has been counted.
8. 8. Bar Graphs • The items to be counted go on the x- axis and the numbers of items go on the y-axis.
9. 9. Circle graphs (pie charts) • Circle graphs or pie charts are used to show how some fixed quantity is broken down into parts.
10. 10. Closure: What type of graph is best to present this data? 1. The types of pets owned by GCMS students 2. The change in water temperature as it is heated for 15 minutes 3. The types of elements that make up the human body 4. The distance a steel ball travels down a ramp in a certain amount of time