Science and Technology · Science Pedagogy

In a science class, students are given batteries, a bulb, connecting wires, and various test materials (paper, iron nails, paperclips, wood, water, and lemon juice). They are asked to design an experiment to investigate the relation between the nature of the material and electrical conduction. Which set of process skills is primarily promoted through this activity? A. Observation B. Classification C. Measurement D. Formulating hypothesis E. Defining operationally