Physical+properties

toc =Procedure (Red Team)= Abbi W, Camryn B, Lance D, Tyler M, Sydney J, Emily S, Afton M, Brody M, Lauren W

Procedures First you need to take the temperature of the air and the water. The air temperature was 42 degress F. and the water was 38 degress F. After that put one stake on both sides of the stream, take a rope and attach it to each stake (make sure that the rope is tightened), put clothespins on the rope and measure it in meters on where to place them. The rope was 4.7 meters measured from wetted edge to wetted edge( a wetted edge is where the river begins; it is where the bank that is dry stops and where the water in the river/stream begins and is wet). The clothespins were placed where the stream began. divide 4.7 by 5. The pins should be every .94 centimeters. After you finish that from each pin you measure the depth of the water. At the first pin it was 33 centimeters, the second 21 centimeters, the third 63 centimeters, and the fourth 31 centimeters. Then take the average depth of them. The average was 37 centimeters. After we finished that we measured ten meters from every pin downstream to float tennis balls to find the velocity. first tennis ball was 21.7, second 22.13, third 33.47, fourth 19.53 the volume of the flow was .32 cubic meters. there are 320 liters flowing through the stream.

1. The first thing we did was to find the outside air temperature using a thermometer that measured in degrees Celsius.(Above) The Air temperature was 10 degrees Celsius.

2. Next, we found the temperature of the stream using a thermometer that measured in degrees Celsius. (Above) The water was 7.5 degrees Celsius

3. After that, we had to place stakes into either side of the river, being careful not to pound too hard and also placing it in a place with minimal rocks. Or, as we found out they will break :/

4. We then had to stretch rope from one wooden stake to the either stake across the river.

5. We measured from wet edge to wet edge (a wetted edge is where the river begins; it is where the bank that is dry stops and where the water in the river/stream begins and is wet) and found that it was 4.7 meters wide.

6. We then put clothes pins every 1.4m on the rope.

7. We then measured how deep the water was from each clothes pin **1st-** 33cm The average depth is 37cm.
 * 2nd**- 21cm
 * 3rd**- 63cm
 * 4th**- 31cm



8. We dropped a tennis ball down under each clothes pin and timed it going ten meters to find the velocity of the stream. **1st pin**- 19.53 seconds The average is 22.21 seconds
 * 2nd pin**- 21.72 seconds
 * 3rd pin**- 22.73 seconds
 * 4th pin**- 33.75 seconds

The ending stream volume is .23 meters/ second.

Formulas We Used A+B+C+D/4=Average Depth A/4=Average time 5/Average time= S velocity m/seconds DxWxVxC (Depth x Velocity x Width x Constant)

media type="custom" key="6160701" align="center"

= Green Team = = =

Velocity is the rate of change of position. To find the Velocity at the Jackson river we used a tennis ball. One person stood at one part of the stream and 2 other people stood at the other end, while another person was timing how long it took the tennis ball from one side to the other. The one person at the top of the stream took the tennis ball dropped it in the water, and when it came down to the other two people they grabbed it and timed how long it took from the one point to the other. We took the tennis ball and dropped it at 4 different spots to get an overall velocity. The first time the tennis ball took 17.38 seconds, the second time took 24.60 seconds, third took 20.72 seconds, and the fourth time took 38.80 seconds. So the average speed came out to be 25.375.