Multiple Choice
In the context of the scientific method, which variable is the one that is being tested in a scientific study?
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1. Introduction to Biology
Scientific Method
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Which of the following is an example of a quantitative observation?
A
The flowers have a pleasant fragrance.
B
The plant looks healthier than last week.
C
The leaves of the plant are bright green.
D
The plant grew 5 centimeters in one week.
Verified step by step guidance1
Step 1: Understand the concept of quantitative observation. Quantitative observations involve measurements or numerical data, as opposed to qualitative observations, which describe qualities or characteristics without using numbers.
Step 2: Analyze each option provided in the problem. Look for descriptions that include numerical data or measurements, as these are indicative of quantitative observations.
Step 3: Evaluate the first option: 'The flowers have a pleasant fragrance.' This is a qualitative observation because it describes a sensory characteristic without numerical data.
Step 4: Evaluate the second option: 'The plant looks healthier than last week.' This is also a qualitative observation because it describes a subjective comparison without numerical data.
Step 5: Evaluate the fourth option: 'The plant grew 5 centimeters in one week.' This is a quantitative observation because it includes a numerical measurement (5 centimeters), making it the correct answer.
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