Exercise 2: Testable Observations Determine which of the following observations
ID: 50324 • Letter: E
Question
Exercise 2: Testable Observations
Determine which of the following observations are testable. For those that 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?
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.
Explanation / Answer
1
Testable
Yes
2
qualitative or quantitative
quantitative
3
Hypothesis
A plant will grow three inches faster per day when placed on a window sill (Plant under sunlight grows faster) than it does when placed on a on a coffee table in the middle of the living room (Plant under shade).
4
Null Hypothesis
The growth of the plant will be at the same rate whether placed on a window still or a coffee table in the middle of a room
5
Experimental approach
Will buy two identical plants of same age and will place one plant on window still and another plant on a coffee table in the middle of the room. Will water them with the equally.
6
Dependent Variables
The plant (We can measure the growth)
7
Independent Variables
Sunlight (We can’t control)
8
Positive control
The Plant which is growing faster on window sill
9
Negative Control
The Plant which is growing slower on a coffee table in the middle of the room
10
How will you collect your data
By measuring the Plant height
11
How will you present your data (charts, graphs, types)
Graph On X-axis we can represent Plant 1(which was kept on window sill), Plant 2 (Kept on a coffee table in the middle of the room), and On Y –axis the length of the plant grown. Analyze your results
1
Testable
Yes
2
qualitative or quantitative
quantitative
3
Hypothesis
A plant will grow three inches faster per day when placed on a window sill (Plant under sunlight grows faster) than it does when placed on a on a coffee table in the middle of the living room (Plant under shade).
4
Null Hypothesis
The growth of the plant will be at the same rate whether placed on a window still or a coffee table in the middle of a room
5
Experimental approach
Will buy two identical plants of same age and will place one plant on window still and another plant on a coffee table in the middle of the room. Will water them with the equally.
6
Dependent Variables
The plant (We can measure the growth)
7
Independent Variables
Sunlight (We can’t control)
8
Positive control
The Plant which is growing faster on window sill
9
Negative Control
The Plant which is growing slower on a coffee table in the middle of the room
10
How will you collect your data
By measuring the Plant height
11
How will you present your data (charts, graphs, types)
Graph On X-axis we can represent Plant 1(which was kept on window sill), Plant 2 (Kept on a coffee table in the middle of the room), and On Y –axis the length of the plant grown. Analyze your results
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