Bio Lab 1

Topics: Hypothesis, Scientific method, Observation Pages: 2 (282 words) Published: September 21, 2013
Lab 1 : Scientific Method
Table 2: Water quality vs. fish population
1. Based on the information in Table 2, (in the lab manual) what patterns do you observe? 2. Develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water. 3. What would your experimental approach be to test this hypothesis? 4. What are the independent and dependent variables?

5. What would be your control?
6. What type of graph would be appropriate for this data set? Why? 7. Graph the data from the table above.
Dissolved Oxygen (p21
8. Interpret the data from the graph made in Question 7.
Exercise 2:
Determine which of the following observations are testable. For those that are testable: o    Write a hypothesis and null hypothesis
o    What would be your experimental approach?
o    What are the dependent and independent variables?
o    What is your control?
o    How will you collect your data?
o    How will you present your data (charts, graphs, types)? o    How will you analyze your data?
1. When a plant is placed on a window sill, it grows faster than when it is placed on a coffee table in the middle of the living room.
3. I caught four fish at the seven o’clock in the morning but didn’t catch any at noon.  
5. When Sally eats healthy foods and exercises regularly, her blood pressure is lower than when she does not exercise and eats fatty foods.
7. Bob bought a new blue shirt with a golf club on the back for twenty dollars.  
9. George did not sleep at all last night because he was up finishing his paper.  
11. How can you apply scientific method to an everyday problem? Give one example.
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