Drop In #5

Oxygen Testing

Introduction:

Students will be able to use the Frederick County Outdoor School website to get information needed for the 2 day field trip to study water quality and wetlands.

Problems:

1. Define the abbreviations used in this testing procedure.

DO =

PPM =

2. According to the information how does oxygen get into the water?

a.

b.

c.

3. According to the procedure for testing dissolved oxygen how many tablets are added and how many minutes do you wait?

_____ Tablets

_____ Minutes

Click on the Outdoor School Logo to go to Data Tables from the last several years. Complete the chart below by reviewing the yearly data posted for May 21.