Final answer:
The two types of systematic observation in measurement are qualitative and quantitative. Qualitative observations describe without numbers, while quantitative include numerical measurements.
Step-by-step explanation:
The two types of systematic observations in measurement are qualitative and quantitative observations. Qualitative observations describe properties or occurrences in ways that do not rely on numbers. For example, stating that the air is cooler during winter or sulfur crystals are yellow are qualitative observations because they describe attributes without a numerical value.
On the other hand, quantitative observations involve measurements that consist of both a number and a unit, such as stating the melting point of sulfur is 115.21° Celsius, or that 35.9 grams of table salt dissolve in 100 grams of water at 20° Celsius. This type of observation offers precise and numerical data about the properties being studied.