Describe the method you would use to determine the density of an irregular solid object using water displacement.

To determine the density of an irregular solid, first measure the mass of the object using a balance. Then, fill a graduated cylinder with a known volume of water and record this volume. Submerge the irregular solid in the water and measure the new water level. The volume of the solid is the difference between the two water levels. Finally, use the formula density = mass/volume to calculate the density.

Graph lens: Read the trend, flat section, gradient, or axis labels before explaining the physical meaning. This question asks: Describe the method you would use to determine the density of an irregular solid object using water displacement. The correct response is To determine the density of an irregular solid, first measure the mass of the object using a balance. Then, fill a graduated cylinder with a known volume of water and record this volume. Submerge the irregular solid in the water and measure the new water level. The volume of the solid is the difference between the two water levels. Finally, use the formula density = mass/volume to calculate the density., because the particle model explains the observable property using particles. In Density of materials, the marking point should connect directly to required practical activity 5: use appropriate apparatus to determine densities of irregular solid objects. 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 63 is distinct because it uses this exact question context and the graph lens rather than a generic particle-model sentence.