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Environmental Science- Salinity

In: Science

Submitted By indus123
Words 447
Pages 2
AIM
To investigate the amount of salts dissolved in 5 water samples.
RESEARCH QUESTION
Does 88 µ s/cm have a less suitable domestic use than 3500 µ s/cm ?
HYPOTHESIS
88 µ s/cm has a lower suitability for domestic use than 3500 µ s/cm
VARIABLES Independent variable: Amount of TDS Control variables: sample size of water Dependent variable: Water sample
MATERIALS
• 5 water samples
• Beakers(200 ml)
• Vernier Conductivity probe
• Wash bottle with distilled water (200 ml)
• Logger Pro
• Measuring cylinder
METHOD
1. First I decided 5 places from where to collect water samples. This was not planned but done in a random manner.
2. I then collected the water samples in plastic jars.
3. Once the water was collected, 100 ml of each sample was measured and I poured it into a beaker(200 ml)
4. Then I collected all 5 beakers and labeled them a to e to differentiate the samples
5. After that I set the selector switch on the side of the conductivity probe to the 0-2000 µS/cm range. Then I connected the conductivity probe to Logger Pro.
6. Then I set up the data collection mode on Lab quest and select mode on the meter screen. After doing

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