**Overview:** This project is a cross-cutting activity that asks students to first create scatter plots / line plots of data from a weather balloon and then interpret the physical meaning of their graph. They discover how temperature changes with altitude and how the lower atmosphere is structured. The students then fill in their graph with features of the atmosphere. More advanced students can continue on to Part II of this project.

**Video above will walk you through this project.**

**Weather balloon data: **Your students will need **one** of the files below. Each has the same data from the weather balloon, but they differ in that I have highlighted (shaded) different alternate rows for the students to plot. I only have my students plot the highlighted rows, not the entire set. It would be ridiculous to have them plot all of the data by hand and the overall pattern of their graph will more ore less be the same no matter which subset of points you have them plot. You can decide how many data points you want your students to plot….I have indicated how many total points that will need to be graphed for each file. If you don’t know which one to use, start with the easy one first (11 points).

July-4th-afternoon-skipping-3-33-points [PDF] every 4th row shaded – **33 points** total to plot

july-4th-afternoon-skipping-4-27-points [PDF] every 5th row shaded – **27 points** total to plot

July-4th-afternoon-skipping-6-19-points [PDF] every 7th row shaded – **19 points** total to plot

July-4th-afternoon-skipping-9-14-points [PDF] every 10th row shaded – **14 points** total to plot

July-4th-afternoon-skipping-12-11-points [PDF] every 13th row shaded – **11 points** total to plot

July-4th-soundings-no-shading [PDF] no shading – use this if you want to do your own thing

**Answer keys:** An excel-generated plot for each of the above datasets. Please realize that the aspect of your students’ graphs will depend on the scale you use. Pick the answer key that matches the dataset you are using.

July-4th-afternoon-skipping-3-graph-only [PDF] for the dataset above with **33 points**

july-4th-afternoon-skipping-4-graph-only [PDF] for the dataset above with **27 points**

July-4th-afternoon-skipping-6-graph-only [PDF] for the dataset above with **19 points**

July-4th-afternoon-skipping-9-graph-only [PDF] for the dataset above with **14 points**

July-4th-afternoon-skipping-12-graph-only [PDF] for the dataset above with **11 points**

July-4th-soundings-all-points-graph [PDF] for all data that the weather balloon generated. After the students have made their plots, I show them this graph to illustrate what their graph would have looked like if they had plotted ALL of the data. The general shape is the same is theirs, but there is more detail – more variations in temperature.

**Annotated graph:** annotated-graph