This physics practical document outlines procedures for measuring the volume of a wooden block, diameter of copper wires, and dimensions of a test tube. It involves using a ruler, vernier caliper, and micrometer screwgauge to take multiple readings which are then averaged and used to calculate values like volume. Taking more than one reading improves accuracy by reducing risks of outliers. Errors are reduced by ensuring proper eye level placement and noting any zero errors which are subtracted from readings before calculation.