Experiment Report: Water Conductivity Level in Goa Gajah
Experiment Report
Title:
Water Conductivity Level in Goa Gajah
Research Question:
How high is the water conductivity level of the water sources in Goa Gajah?
Hypothesis:
I predict the level of electrical conductivity of the water sources in Goa Gajah will be between the range of a normal drinking water, which is 0.0005 to 0.005 s/m. This hypothesis is based on the fact that conductivity largely concerns itself with the amount of salt in the water, and since none of the water sources are connected to the sea and pretty much well preseved there shouldn’t be too much salt in the water.
Variables:
Independent Variable: The different water sources in Goa Gajah
Dependent Variable: Water conductivity
Incidental Variable: Water conductance
Controlled Variables: Water container used, Distance between zinc strip and copper strip
Materials:
-Copper strip
-Zinc strip
-Basic meter (voltage, current)
-3 Alligator clips
-1.5 V Battery
-Water container
-Water samples
-Cellophane tape
Method and Procedure:
1. Connected the copper strip to a battery using an alligator clip.
2. Connected the battery to a basic meter using another alligator clip.
3. Connected the zinc strip to the other end of the basic meter.
4. Placed the copper and zinc strip on opposite sides of the water container.
5. Measured the current and voltage of the water sample.
6. Wiped the copper and zinc strip of any water residue from the sample.
7. Measured the current and voltage of another sample of water.
8. Repeated step 6 and 7 until all the samples were measured
Standardizing the Dependent Variable
To standardize the dependent variable all of them will be processed by multiplying their conductance with the distance between the copper and zinc strip and then dividing the result with the cross-sectional area to get its electrical conductivity.
Manipulating the Independent Variable
To manipulate the independent variable different samples from different water
Title:
Water Conductivity Level in Goa Gajah
Research Question:
How high is the water conductivity level of the water sources in Goa Gajah?
Hypothesis:
I predict the level of electrical conductivity of the water sources in Goa Gajah will be between the range of a normal drinking water, which is 0.0005 to 0.005 s/m. This hypothesis is based on the fact that conductivity largely concerns itself with the amount of salt in the water, and since none of the water sources are connected to the sea and pretty much well preseved there shouldn’t be too much salt in the water.
Variables:
Independent Variable: The different water sources in Goa Gajah
Dependent Variable: Water conductivity
Incidental Variable: Water conductance
Controlled Variables: Water container used, Distance between zinc strip and copper strip
Materials:
-Copper strip
-Zinc strip
-Basic meter (voltage, current)
-3 Alligator clips
-1.5 V Battery
-Water container
-Water samples
-Cellophane tape
Method and Procedure:
1. Connected the copper strip to a battery using an alligator clip.
2. Connected the battery to a basic meter using another alligator clip.
3. Connected the zinc strip to the other end of the basic meter.
4. Placed the copper and zinc strip on opposite sides of the water container.
5. Measured the current and voltage of the water sample.
6. Wiped the copper and zinc strip of any water residue from the sample.
7. Measured the current and voltage of another sample of water.
8. Repeated step 6 and 7 until all the samples were measured
Standardizing the Dependent Variable
To standardize the dependent variable all of them will be processed by multiplying their conductance with the distance between the copper and zinc strip and then dividing the result with the cross-sectional area to get its electrical conductivity.
Manipulating the Independent Variable
To manipulate the independent variable different samples from different water