Read the following statements: S1: A sample of water has a boiling point of 102°C. S2: There may be some impurities present in the sample. Which of the following choices correctly identifies the nature of statements S1 and S2?

A teacher notices during a lesson on force and motion that some students are confused. She conducts a short test in the middle of the lesson to identify misconceptions and adjusts her teaching approach based on the results. What kind of assessment is the teacher conducting?

In a school project work, such as one on 'Water Conservation' where students design models, present findings, and submit detailed reports, assessment can be done through: