What set of tools will provide the most precise measurements for calculating the density of an irregularly shaped rock?

To accurately measure the density of an irregularly shaped rock, a balance for measuring mass and a graduated cylinder for measuring volume through water displacement are essential tools. The balance provides precise mass readings, while the graduated cylinder allows for an accurate volume measurement by submerging the rock in water. Combining these measurements using the formula density = mass/volume will yield the most precise density calculation. Additionally, using a digital balance and a calibrated graduated cylinder can enhance measurement accuracy.