Answer:
Qualitative
Explanation:
Recording a change in the color of a substance is an example of collecting qualitative data.
Data generally refer to information collected or recorded through observations. There are different types of data:
- Quantitative data: data that can be quantified/measured. Examples include; height, number of cars, intelligence quotient, etc.
- Qualitative data: Data that cannot be quantified but categorized or ranked. E. g. beauty, color, etc.
Hence, recording a change in the color of a substance can be classified as collecting qualitative data.
