AS Level Science

AS Level Science Chapter Weightage 2026-27

Topic-wise Marks Distribution — Physics, Chemistry, Biology & Mathematics

Complete guide to chapter weightage for AS Level Science. Understand the marks distribution to plan your exam preparation effectively. Your complete guide to AS Level Science chapter weightage.

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AS Level Science Weightage Overview 2026-27

Subject	Paper 1	Paper 2	Paper 3	Paper 4
Physics	31%	46%	23%	N/A
Chemistry	31%	46%	23%	N/A
Biology	31%	46%	23%	N/A
Mathematics	25%	17%	17%	17%

Note: Mathematics students typically take Papers 1 & 2 (Pure Math) plus 1-2 additional papers. Weightages are approximate.

AS Level Physics Weightage 2026-27

Topic Area	Weightage (%)
Mechanics	35-40%
Fields	15-20%
Electricity	15-20%
Practical Skills	15-20%
Other Topics	10-15%

Note: Weightage may vary. Please check with your Cambridge school for exact distribution.

AS Level Chemistry Weightage 2026-27

Topic Area	Weightage (%)
Physical Chemistry	35-40%
Organic Chemistry	30-35%
Inorganic Chemistry	25-30%
Practical Skills	15-20%

Note: Weightage may vary. Please check with your Cambridge school for exact distribution.

AS Level Biology Weightage 2026-27

Topic Area	Weightage (%)
Cell Biology & Molecular Biology	30-35%
Physiology	25-30%
Genetics & Evolution	15-20%
Ecology & Environment	10-15%
Practical Skills	15-20%

Note: Weightage may vary. Please check with your Cambridge school for exact distribution.

AS Level Mathematics Weightage 2026-27

Paper	Weightage (%)	Topics Covered
Paper 1	25%	Pure Mathematics 1
Paper 2	17%	Pure Mathematics 2
Paper 3	17%	Mechanics
Paper 4	17%	Statistics

Note: Students typically take Papers 1 & 2 (Pure Math) plus 1-2 additional papers based on subject requirements.

Frequently Asked Questions

Which topics have the highest weightage in AS Level Science?

In all Science subjects, core topics (Mechanics in Physics, Physical Chemistry in Chemistry, Cell Biology in Biology) have the highest weightage (35-40%).

How is the practical weightage distributed?

Practical skills (Paper 3) contribute 23% of the final grade for Physics, Chemistry, and Biology. Mathematics has no practical component.

How can StudyDecode help me with AS Level Science weightage?

StudyDecode provides comprehensive guidance for AS Level Science students. We help you understand the weightage, plan your preparation, and focus on key areas for success. Book a free consultation to know more.