ABSTRACT
The density of a liquid is the quantity of mass of a liquid in a certain volume. The calculation for density is mass divided by volume. This chapter describes the procedure for identifying the relative densities of a range of liquids by making a density column. This real-world science experiment is structured as a problem-solving activity thus helping KS3 science teachers to engage students effectively in the secondary school classroom. First, background science knowledge for this experiment is provided, along with the learning objectives, list of materials needed for the experiment, safety and technical notes, and a list of engaging activities to be performed by students. Data collection ideas are subsequently provided, together with useful questions to ask the students and also suggestions for homework.
