lab report

Introduction:The Furnace Brook Lab was an effort to observe the water quality in the stream. The aim of the lab was to find the healthiest environment for the species that live within the water.You would typically find the water samples and the water flow rates, the general stream characteristics stream width,  calculating the area and velocity,  the levels of dissolved oxygen and the ph levels.

Research Question:Within the two locations find the healthiest environment for the species that live in the stream.

Hypothesis: The location with the best water quality and a neutral ph level will be the environment for the species  

Variable Identification:  

Controlled Variable	Method to control the variable
The stream	The two locations

Experimental Setup :  The experiment took place at Corcoran stream. The materials that were used were a meter stick, a golf ball, a stopwatch and a dissolved oxygen and ph pill. In the photo the stream is located towards the bottom where the lab took action. Each group of student were to find two different location

Procedure: 1. Get in two groups of five so you can have a sampler one and two, a recorder, timer and a person to do the calculations

2. find a location on the stream

3. measure about 40 feet down the stream and mark it 

   4. measure the width of the stream

   5. measure the depth of the stream six time  

   6. take the temperature of the water

   7. have one person stand at the beginning of the 40 feet

       with the golf ball and another person stand at the end of the 40 feet,you will need to have a person time from when the first person drop the ball until it reaches the second person (repeat this step 5 times)

8.measure the dissolved oxygen

9.measure the ph level

10.repeat  steps 1-9 for location 2

Data:  

depth of the stream	1	2	3	4	5	6
location 1	4.5in	4in	5in	5in	5.5in	6.5in

location 2

5.5in

8in

10in

7in

8in

7in

Float Time Trial	Time
1	42.56
2	28.35
3	29.44
4	28.34
5	29.54

Results :

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Discussion: There weren’t as many species found in the water even though water was fairly  clean. The water appeared clear and there wasn’t a smell. The texture of the algae was cobbles and the stream  description was rocks.

Evaluation:  The lab could of had some mess ups in the exact amount, also the lab could of been done one day.

Conclusion: My hypothesis was wrong because both location had clean water and there wasn’t many species on either locations