Quantitative observations are the data collected in an experiment, mostly numbers. Qualitative observations would usually include written answers to analysis questions.
listen the words qualitative quantitative see the part where it is bold. qualitative, is the way of analysis to a substance through its quality, like reaction to a re-agent etc. (normally chemistry)....
Qualitative observation is becoming aware of an object/event by using properties related to numbers and/or measurements. Weight, height, etc. Anything measured with a numeric value is considered...