What unit is density commonly measured in for liquids?

The correct answer is Grams per cubic centimeter (g/cm³).

Practical lens: Link apparatus, readings, and uncertainty to the exact measurement named in the objective. This question asks: What unit is density commonly measured in for liquids. The correct response is Grams per cubic centimeter (g/cm³), because density links mass and volume, so the answer must preserve which quantity is being calculated. In Density of materials, the marking point should connect directly to describe how to determine the density of a liquid using a balance and measuring cylinder. If the question includes values, the working must keep the appropriate unit and operation; if it is an explanation, it must name the relevant particle behaviour or energy change. This item belongs to Changes of state and the particle model, so avoid answers that switch to a different quantity, confuse heat with temperature, or describe gas pressure without collisions when collisions are the reason. Checkpoint 86 is distinct because it uses this exact question context and the practical lens rather than a generic particle-model sentence.