Which tool is used to divide a sample weighing less than 25 lbs into quarters?

The tool that is most suitable for dividing a sample weighing less than 25 lbs into quarters is a trowel. A trowel is a small hand tool with a pointed, scoop-shaped metal blade, which is designed for precise work in small spaces. It provides the control needed to handle smaller quantities of material safely and effectively, allowing for accurate division into quarters.

Using a trowel for this purpose is advantageous because its shape and size enable the operator to carefully portion out material with minimal disturbance to the sample. Unlike larger tools such as a shovel or spade, which are better suited for moving larger quantities of material, the trowel is specifically designed for tasks that require more finesse, such as sampling or mixing in smaller, more contained areas.

Additionally, while a fork may be useful for turning or mixing materials, it lacks the flat surface that a trowel provides for cleanly dividing and scooping out exact portions of a sample. Choosing the trowel ensures that the process of dividing the sample is done accurately and maintains the integrity of each quarter.