2.3. Indian Institute of Technology – Madras

Try these first

1. 1.

   Define what a sample is in the context of environmental science.

   Hint

   Think about why scientists collect samples.

2. 2.

   What does TSS stand for?

   Hint

   It relates to measuring particles in water.

3. 3.

   Which of the following defines a sample in environmental science?

   • A theoretical concept
   • An amount collected for analysis
   • All possible substances

   Hint

   Think about why we perform measurements in science.

4. 4.

   True or False: All instruments can measure any level of concentration without limitations.

   • True
   • False

   Hint

   Recall how detection limits function.

5. 5.

   You are conducting a TSS measurement and your instrument has a detection limit of 1 mg/L. If your water sample has a measured TSS concentration of 0.8 mg/L, discuss the implications of this reading.

   Hint

   What does it mean for your measurement capabilities?

6. 6.

   Design an experiment to compare the TSS levels between two different water sources—one from a river and one from a reservoir. Discuss sample volume, frequency, and statistical significance.

   Hint

   How can setting consistent parameters help achieve valid results?