Jason (5 Radium)u should write the eye level must be perpendicular to the scale reading of Ruler / Meter rule / Measuring tape/ measuring cylinder / burette / pipette/ammeter/voltmeter to avoid parallax error to get full marks.and remember all your data should have the same decimal places. if lets say u have 2.5 , 3.6 and 4, u shouldn't write 4, u should write 4.0t.me/chemistryspmnotes/157193September 4, 2026 1.2K 1 4