From WikiEducator

Jump to: navigation, search

Biology In Elementary Schools is a Saint Michael's College student project. Link under 'toolbox' for a printer-friendly version. Click on handouts to print full resolution versions. Please see Wikieducator's disclaimer our safety statement, and the creative commons licensing in Englishand in legalese.

Introduction

This can be a simple graphing activity. You could also choose to use the data for linear regression. I have posted photographs of a yard stick taken at regular intervals during the February 14 2007 snowstorm in South Burlington Vermont. The times are given under each photograph, and snow accumulation can be recorded by zooming in (single click) on the photographs.

Suggestion progression of activity (stop at level appropriate for your grade):

Make data table recording time and snow depth.
Convert to metric units perhaps.
Line graph of data set.
Measure slope to measure rate of snow accumulation (express in inches per hour; or per minute).
Run a linear regression to determine if a significant relationship exists between time and snow accumulation.

Valentine's Day storm

Data set 1;Valentine's Day snow storm 2007, South Burlington Vermont
Figure 1. Snow accumulation at 3:15 during a snowstorm on Feb 14 2007 in South Burlington Vermont USA; click to view closer	Figure 2. Snow accumulation at 3:45; click to view closer.	Figure 3. Snow accumulation at 4:15; click to view closer.	Figure 4. Snow accumulation at 4:45; click to view closer.
Figure 5. Snow accumulation at 5:15; click to view closer.	Figure 6. Snow accumulation at 5:45; click to view closer.	Figure 7. Snow accumulation at 6:15; click to view closer.	Figure 8. Snow accumulation at 7:00; click to view closer; please note that this and the next image are not at 30 minute intervals.
Snow accumulation at 10:45:00; click to view closer; please note that this and the previous image are not at 30 minute intervals.

Saint Patrick's Day storm

During this storm, the meter stick was in a pile of old snow that measured about 40 cm wide. Snow tended not to accumulate as rapidly because of the small surface size.

Data set 2;Saint Patrick's Day snow storm 2007, South Burlington Vermont; note the metric units
Figure 9. Snow accumulation 9:00PM	Figure 10. Snow accumulation 9:30PM	Figure 11. Snow accumulation 10:00PM	Figure 12. Snow accumulation 10:30PM
Figure 13. Snow accumulation 11:00PM	Figure 14. Snow accumulation 11:30PM	Figure 15. Snow accumulation 12:00AM	Figure 16. Snow accumulation 7:30AM; note the shift in in timing.
Figure 17. Snow accumulation 8:30AM; note the shift in in timing.	Figure 17. Snow accumulation 10:10AM; note the shift in in timing.