
Movie: No air bubbles in the pipette! (1.2M)*

Movie: Take your pipette out (3.5M)*

Movie: 8 drops to purple (3.9M)*

Movie: Set it down on the level at 20 (2.3M)*

Movie: Cap your old bottle (6.6M)

Movie: Rotate with the wrist (3.4M)*

Movie: Shake it all around and wear old clothes (7.3M)

Movie: pH color matching (1.2M)

Movie: Want 3 to 6.5 pH (1.8M)

Movie: pH sampling in Drexel Park with spectators (10M)

Movie: Separating sediment (968K)-

Movie: Clean streams to attract business (2.1M)

Movie: Conductivity meter (6.0M)

Movie: South Georgia streams are different (temperature, flow, rocks, dissolved oxygen) (3.3M)

Movie: Sample at three locations near where streams join (7.0M)