The student found the volume of the copper block by multiplying the area of its base by its height - Edexcel - GCSE Physics - Question 2 - 2016 - Paper 1

To measure the volume of the small stone, the student can use the water displacement method. Here’s a step-by-step process:

1. Fill a Graduated Cylinder: Start by filling a graduated cylinder with a known volume of water, ensuring that it is enough to submerge the stone completely.

2. Record the Initial Water Level: Carefully note the water level on the graduated cylinder, marking the initial volume before adding the stone.

3. Submerge the Stone: Gently place the small stone into the cylinder with water. Ensure that no water spills out during this process.

4. Record the New Water Level: After the stone is submerged, observe and record the new water level.

5. Calculate the Volume of the Stone: To find the volume of the stone, subtract the initial water level from the new water level:

   $V_{stone} = V_{final} - V_{initial}$

By following these steps, the student can accurately determine the volume of the stone.