Excellent news for S.4 Chemistry students and teachers! The comprehensive Scoring Guide for S.4 Chemistry Paper 1 (2025), prepared by Joseph Lomoi Rugamoi (Joselo), is now available for download.

This guide offers:

• A full breakdown of the marks awarded for each item and sub-section of the Chemistry Paper 1 (545/1).

• Practical scenarios involving detergents, construction materials, copper production, ethanol, and environmental considerations—mirroring actual exam demands.

• Clear point allocations—for example, Section A Item 1 totals 18 marks, with sub-parts scoring 2, 4, 4, and 6 marks respectively.

This scoring guide helps students:

• Understand examiner expectations by seeing exactly how answers are valued.

• Improve accuracy in structured and scenario-based responses.

• Boost confidence by aligning revision with actual scoring patterns.

• CLICK HERE to download it