This activity is designed for teaching the understanding about inquiry that a scientific investigation starts from a question. Without a research purpose, just collecting data is never ending.
Students are given a bunch of different types of measurement tools. Then, they are asked to measure whatever they want using different types of measurement tools. After a while, students might question why they are doing this measurement or they would be asked “Why are you collecting data?”
The debriefing focuses on the point that scientists just do not collect data for no reasons. Scientific investigations begin with a research question.
A bunch of measurement tools such as meter sticks, measuring tapes, digital balances, beakers, graduate cylinders, scales, tape measures, etc.