Compare densities of materials using calculated or measured values.

Compare densities of materials using calculated or measured values. Exam lens: Write the relationship, substitute values only when needed, and finish by interpreting the result. In Density of materials, this means the particle model explains the observable property using particles. The answer should use the approved wording from Changes of state and the particle model, include densities, materials, calculated, measured, and avoid drifting into another section of Particle model of matter. For revision, practise saying the exact objective aloud, then add the one calculation, particle movement, collision, graph, or practical detail that makes the statement true. A strong exam response for checkpoint 16 is specific to compare densities of materials using calculated or measured values and does not reuse a generic explanation from a neighbouring objective.