To measure the volume of an irregular solid, pour water in a graduated cylinder, read the water volume, immerse the object in the cylinder, and subtract the initial water volume from the new volume to get the volume of the object. Use a graduated cylinder and water to accomplish this task.

**Find the water volume**Measure enough water to cover the whole object, and pour it into a graduated cylinder, making sure you don't completely fill the cylinder. Read the volume of the water before displacement, and record the value.

**Submerge the solid into the water**Immerse the solid into the cylinder so that the water completely covers the solid without any spillage. Let the water settle to avoid inaccurate reading. Read the new volume after displacement, and record the value. If necessary, repeat the process to ensure your values are accurate.

**Calculate the volume of the solid**To find the volume of the solid, subtract the water volume before immersion from the new water volume after the immersion. For example, if the initial water volume in the cylinder is 10 cubic meters and the volume after immersion is 15 cubic meters, the volume of the irregular solid is 5 cubic meters.