Observations may be

Observations may be

• A. Only qualitative
• B. Both quantitative and qualitative
• C. Only numerical
• D. Neither

Answer: (B)

Observations in science can be described using both qualitative descriptions and quantitative measurements. Qualitative observations involve descriptions of properties you notice with senses or with instruments—things like color, texture, shape, or odor. Quantitative observations involve numbers and measurements—length, mass, temperature, time, pH, and so on. Because data can come as descriptive notes as well as numerical values, observations may be both qualitative and quantitative. For example, you might observe that a solution is blue (qualitative) and that its temperature is 25°C (quantitative). Some observations can be purely qualitative or purely quantitative, but many scientific records combine both. Saying observations are only qualitative or only numerical ignores the full range of data scientists collect, and saying neither is not accurate because observations are anything noticed and recorded.

Observations in science can be described using both qualitative descriptions and quantitative measurements. Qualitative observations involve descriptions of properties you notice with senses or with instruments—things like color, texture, shape, or odor. Quantitative observations involve numbers and measurements—length, mass, temperature, time, pH, and so on. Because data can come as descriptive notes as well as numerical values, observations may be both qualitative and quantitative. For example, you might observe that a solution is blue (qualitative) and that its temperature is 25°C (quantitative). Some observations can be purely qualitative or purely quantitative, but many scientific records combine both. Saying observations are only qualitative or only numerical ignores the full range of data scientists collect, and saying neither is not accurate because observations are anything noticed and recorded.