ECOLOGY DISRUPTED:  Winter Roads

Full Name  ______________________   Class _________  Date _________

Investigation Booklet
Representing and Making Meaning from Data

1. How do the benchmarks make your graph data more meaningful?

2. What do you notice when comparing the data from your graphs? How do salt levels compare in forested, suburban, and urban streams? By season? Annually?

3. So what do the patterns you see in the graph mean? What conclusions can you make from the graphs?

4. List two impacts of salt entering Baltimore’s drinking water supply.

A.

B.