Free download How To Make Pie Charts Comparing The Atmospheres Of Venus Earth ... ebooks

How to > Make Pie

How to make pie charts comparing the atmospheres of Venus Earth ...

Short summary:
Procedure: Follow these steps to make any pie chart:. 1. Calculate the percentage of the total that each part represents. In many cases this ...

Long summary:
How to make pie charts comparing the atmospheres of Venus Earth and MarsPage 1BRSP8Page 1How to make pie chartscomparing the atmospheresof Venus Earth and MarsThe composition of Earths atmosphere is approximately 78.1% nitrogen 20.9% oxygen0.9% argon and small amounts of other gases.First among these other gases is carbon dioxidepresent at less than 0.04%.The pie chart (also called circle graph) is apractical way to display information of this typewhere the idea is to show percentages or parts ofthe whole. All thats required is to make eachslice of the pie proportional to its component part.The major limitation of pie charts is that very small parts anything less than about 1 percent are hard to draw because they are so small. For this reason when making a pie chart for Earths atmosphere carbon dioxide and the other minor gases cannot easily be shown. A simplesolution to this problem is to mention them in a side note to the chart.Materials: Calculator protractor pencil activity sheets Procedure: Follow these steps to make any pie chart:1. Calculate the percentage of the total that each part represents. In many cases this information will already be available (as it is in this activity).2. Change the percentage to decimal form and multiply by 360 the number of degrees in acircle. The result is the number of degrees in the pie slice for the part in question.3. Repeat the above for each component part.Note: Steps 1 2 and 3 are most easily done by setting up a table.4. Check your calculations. The sum of all the angles should be 360 degrees (or very close to itafter consideration of rounding effects).5. Using a protractor measure and draw each angle from the center point of the circle.6. Label each slice of the pie with its name and percentage. Use color or shading for clarity.7. Give the chart an accurate title that tells the reader whatinformation is presented.The example given here shows the composition of Venusatmosphere which has only two major components.Componen ...

Source: www.starhop.com