Exercise 1: Data Interpretation Dissolved oxygen is oxygen that is trapped
Question # 00157950
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Updated on: 12/23/2015 05:01 PM Due on: 01/22/2016
Exercise 1: Data Interpretation
Dissolved oxygen is oxygen that is trapped in a fluid, such as water. Since virtually every living
organism requires oxygen to survive, it is a necessary component of water systems such as
streams, lakes and rivers in Dissolved oxygen is oxygen that is trapped in a fluid, such as water.
Since virtually every living organism requires oxygen to survive, it is a necessary component of
water systems such as streams, lakes and rivers in order to support aquatic life. The dissolved
oxygen is measured in units of ppm—or parts per million. Examine the data in Table 4 showing
the amount of dissolved oxygen present and the number of fish observed in the body of water
the sample was taken from; finally, answer the questions below.
Questions
1. What patterns do you observe based on the information in Table 4?
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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 would be the independent and dependent variables?
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5. What would be your control?
6. What type of graph would be appropriate for this data set? Why?
7. Graph the data from Table 1: Water Quality vs. Fish Population table (found at the
beginning of this experiment).
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8. Interpret the data from the graph made in Question 7.
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Exercise 2: Testable Observations
Determine which of the following observations are testable. For those which are testable:
Determine if the observation is qualitative or quantitative
Write a hypothesis and null hypothesis
What would be your experimental approach?
What are the dependent and independent variables?
What are your controls - both positive and negative?
How will you collect your data?
How will you present your data (charts, graphs, types)?
How will you analyze your data?
Introduction to Science
Observations
1. A plant grows three inches faster per day when placed on a window sill than it does when placed
on a on a coffee table in the middle of the living room.
2. The teller at the bank with brown hair and brown eyes is taller than the other tellers.
3. When Sally eats healthy foods and exercises regularly, her blood pressure is 10 points lower than
when she does not exercise and eats fatty foods.
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4. The Italian restaurant across the street closes at 9 pm but the one two blocks away closes at 10
pm.
5. For the past two days, the clouds have come out at 3 pm and it has started raining at 3:15 pm.
6. George did not sleep at all the night following the start of daylight savings.
©eScienceLabs, LLC 2015
Dissolved oxygen is oxygen that is trapped in a fluid, such as water. Since virtually every living
organism requires oxygen to survive, it is a necessary component of water systems such as
streams, lakes and rivers in Dissolved oxygen is oxygen that is trapped in a fluid, such as water.
Since virtually every living organism requires oxygen to survive, it is a necessary component of
water systems such as streams, lakes and rivers in order to support aquatic life. The dissolved
oxygen is measured in units of ppm—or parts per million. Examine the data in Table 4 showing
the amount of dissolved oxygen present and the number of fish observed in the body of water
the sample was taken from; finally, answer the questions below.
Questions
1. What patterns do you observe based on the information in Table 4?
©eScienceLabs, LLC 2015
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 would be the independent and dependent variables?
©eScienceLabs, LLC 2015
5. What would be your control?
6. What type of graph would be appropriate for this data set? Why?
7. Graph the data from Table 1: Water Quality vs. Fish Population table (found at the
beginning of this experiment).
©eScienceLabs, LLC 2015
8. Interpret the data from the graph made in Question 7.
©eScienceLabs, LLC 2015
Exercise 2: Testable Observations
Determine which of the following observations are testable. For those which are testable:
Determine if the observation is qualitative or quantitative
Write a hypothesis and null hypothesis
What would be your experimental approach?
What are the dependent and independent variables?
What are your controls - both positive and negative?
How will you collect your data?
How will you present your data (charts, graphs, types)?
How will you analyze your data?
Introduction to Science
Observations
1. A plant grows three inches faster per day when placed on a window sill than it does when placed
on a on a coffee table in the middle of the living room.
2. The teller at the bank with brown hair and brown eyes is taller than the other tellers.
3. When Sally eats healthy foods and exercises regularly, her blood pressure is 10 points lower than
when she does not exercise and eats fatty foods.
©eScienceLabs, LLC 2015
4. The Italian restaurant across the street closes at 9 pm but the one two blocks away closes at 10
pm.
5. For the past two days, the clouds have come out at 3 pm and it has started raining at 3:15 pm.
6. George did not sleep at all the night following the start of daylight savings.
©eScienceLabs, LLC 2015
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Solution: Exercise 1: Data Interpretation Dissolved oxygen is oxygen that is trapped