Stream+Flow+Test

Period 3, Group E

Hypothesis: We believe that in different areas that the stream flow will be flowing at different rates.

If the stream flow changes from place to place, and we measure the dimensions along with the speed of the water at various locations, then we will collect a range of data proving that stream flow is not consistent.
 * Prediction:**

1. Identify 4 different locations to take measurements. 2. At each location measure the length, width, and depth of the water. 3. Using an light objct, record the length of time it takes to travel down a given distance. 4. Record all data in data table.
 * Procedure:**


 * Data:**

Mass of Stick: 6.2 g. We have found out through our data that our hypothesis is correct. We see that the depth and width change depending on the where are measure. We also find the stream flow varies at different locations. The fastest time was recorded at point two where the water was 2 in deep and 43 in wide. It went the slowest at point three where is was 3 in deep and 17 in wide. There we also a number of leaves at point three.
 * **Trials** || **Distance Stick Traveled** || **Area** || **Time** || **Depth** || **Width** ||
 * 1 || 39 in. || Close to the bridge (left) || 4.25 sec || 2 in. || 40 in. ||
 * 2 || 39 in. || 25 ft. from point one || 2.2 sec || 2 in. || 43 in. ||
 * 3 || 39 in. || 25 ft. from point two || 5.9 sec || 3 in. || 17 in. ||
 * 4 || 39 in. || Black tube || 3.65 sec || 4 in. || 30 in. ||
 * Conclusion**:


 * Period 6 Group F: Matt, Laura, and Juliette**

We think that there will be more water passing over a certain area in a deeper pool zone, as opposed to the shallower riffle zones.
 * Hypothesis:**

If there is more water passing over in deeper pool zones, and we test the velocity, height, and width of water to see how much water is passing over it, then deeper areas of water should have more water passing over it.
 * Prediction:**

1. Find the spot you are going to measure and put 2 meter sticks (end to end) along the side of the water. 2. Stick a meter stick in the middle of the water and measure the height of the water. 3. Then measure the width of water from one side to the other side. 4. Next, drop one small cork at the upstream part of the meter sticks and release the cork. Time the amount of time it takes for the cork to reach the end of the second meter stick. Repeat this step with a slightly larger cork. 5. Repeat these steps for as many other areas of the river.
 * Procedure:**

(cm squared) ||
 * Data:**
 * Location || Height (cm) || Width (cm) || Velocity (sec) ( small, large corks) || How Much Water is passing through
 * Walking Bridge || 4.2 cm || 192 cm || 4.35:small 4.66:large || 3628.8 ||
 * 10 ft. downstream from largest pipe || 5.5cm || 189cm || 8.38:small 9.92:large || 9511.425 ||
 * Near yellow house with gazebo || 5.5 cm || 60 cm || 4.12:small 4.68:large || 1542 ||

Our hypothesis/ prediction was supported because the data that we took showed that within the time of cork passing the 2 meters, more water passed over in a pool zone. We had 2 things of uncertainty in our experiment. They were .5 cm. and .005 seconds. Based on the results, we can conclude that more water in this stream will have more water pass over it in a pool zone opposed to a riffle zone. **
 * Conclusion:**
 * _
 * __ Period 6, Group A Kelsey, Brooke, Ian, Alex __****

__Hypothesis__ ** : We think the flow of the river will go faster to the south.


 * __Prediction__**: If we believe that the water will flow to the south and we put a cork in the river at various spots then we should find the cork will flow to the south at a fast rate in all locations.

2.we place the ruler firmly in the river 3.place the cork in the water and see the speed of the flow 4.observe the time it reaches the ruler and record it
 * __Precedure__**: 1.get a cork ruler and stop watch


 * __Data:__**
 * upstream from bridge || down stream from bridge || further down stream near dirt pile ||
 * Depth:7cm || Depth:3cm || Depth 81/2cm ||
 * width:216cm || width:160cm || width:300cm ||
 * big cork:11sec || big cork:4sec || big cork:23sec ||
 * small cork:10sec || small cork:4sec || small cork:18sec ||

___  **Hypothesis: ** We believe that the area of the river we tested will be flowing to fast to support life.
 * __Conclusion__**: Our hypothesis was disproved by our findings because the findings showed that at some points of the river both the small and the big cork moved at the same speed. Such as the second position where the big and small cork traveled at the same speed. This may have happened in result to not stopping the timer at the same time the cork reaches the end of the ruler.
 * Period 6, Group E - Rich, Rosanna, Kara, and Nick **


 * Prediction: ** If we test the stream flow of the river, and the velocity is too fast, then the river shouldn't be able to support life.

1. Measure the width and depth of the river 2. Put two meter stick together to see how far the cork will be traveling 3. Put small cork at the beginning of the meter stick and time how long it take to get to the other side of the meter stick; repeat this 3 times 4. Same thing as number 3, but instead use a larger cork 5. Record data
 * Procedure: **

1.83 meters is the width of the river. .045 meters is the depth of the river.
 * Data: **
 * ** Test ** || ** Big Cork **
 * Avg Speed 3.32 mph || ** Small Cork **
 * Avg Speed 3.61mph ||
 * 1 || 4.82 seconds || 4.68 seconds ||
 * 2 || 4.89 seconds || 4.33 seconds ||
 * 3 || 5.37 seconds || 4.68 seconds ||


 * Conclusion: ** We have come to the conclusion that the river is healthy. We believe that the river is healthy because it is going at a speed that isn’t so fast. The water is going at a speed slow enough speed to support life.