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ADVENTURE LEARNING 2014 THE MARY AND ANNIE SHOW
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INQUIRY Does canopy cover affect the amount of dissolved oxygen in a small stream?
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Hold onto your shorts and tevas… We think the amount of canopy cover will change the dissolved oxygen levels in a stream.
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Select 5 sites. Estimate canopy cover and take a picture. Use Lab Quest probes to take air temperature. Procedure
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Lab Quest probes read water temperature AND dissolved oxygen level. Procedure (continued)
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Use the CHEMets kit to take a 2nd dissolved O2 reading. Procedure (continued)
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SITE #1: CANOPY COVER: 98% Left Bank: highly vegetative Right Bank: erosion, moss, plants, undercut
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SITE #2: CANOPY COVER: 60% Left Bank: grassy and undercut Right Bank: rocky, flat, some plants
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SITE #3: CANOPY COVER: 15% Left Bank: undercut, erosion Right Bank: stone, rocks, vegetation
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SITE #4: CANOPY COVER: 50% Left Bank: erosion, rocky, some vegetation Right Bank: ferns, debris, rocky
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SITE #5: CANOPY COVER: 90% Left Bank: erosion, root balls, moss Right Bank: erosion, logs, moss
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DATA Does Canopy Cover Affect the Amount of Dissolved O2 in a Small Stream? LocationCloud Cover Canopy Cover Time of Day Air Temp. Water Temp. Dissolved O2 Probe Dissolved O2 Kit 1 Cloudy and Drizzling 98% 2:4014.2C8.9C11.62mg/l9 mg/l Sunny9:3515.1C8.8C13.26 mg/l10 mg/l 2 Cloudy and Drizzling 60% 2:5312.2C8.8C1.25 mg/l9 mg/l Sunny9:42 14.4C 8.8C12.8 mg/l10 mg/l 3 Cloudy and Drizzling 15% 3:0513.2C8C12.48 mg/l9 mg/l Partial Clouds9:5012.6C8.8C12 mg/l10 mg/l 4 Cloudy and Drizzling 50% 3:1516.9C8.9C12.2 mg/l9 mg/l Partial Clouds9:5512.3C8.9C13.25 mg/l10 mg/l 5 Cloudy and Drizzling 90% 3:3013.2C8.9C12.3 mg/l9 mg/l Partial Clouds10:0513.2C8.9C13.3 mg/l9 mg/l
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Site Canopy Cover Dissolved O2 Probe Dissolved O2 Kit 198% 13.26 mg/l 10 mg/l 315%12 mg/l10 mg/l We were right!
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This presentation will be shown to 6 th grade science students to as a sample of the Scientific Process. They will be expected to follow the same procedures when testing water from the Woodland Monitor Well.
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Adventure Scientists Mary and Annie
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