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O/L Science Study Guide 2026 | PaperMaster.lk | PaperMaster LK
Home Study Guides O/L Science Study Guide 2026 – Complete Revision Guide O/L Study Guides PaperMaster Team 29 Sept 2026A complete O/L Science study guide for Sri Lankan students covering Biology, Chemistry, Physics, practical knowledge, revision tips, past paper preparation and exam strategies for the 2026 examination.
O/L Science Study Guide 2026 This O/L Science Study Guide is designed to help Sri Lankan students revise the most important Science topics required for the G.C.E. Ordinary Level examination.
The guide covers key areas in Biology, Chemistry and Physics while providing useful revision methods and examination preparation tips.
What You Will Learn Important Biology concepts Important Chemistry concepts Important Physics concepts Scientific calculations Practical and experimental knowledge Diagrams and labeling Past paper preparation Exam time management Common mistakes to avoid1. Biology Biology is the study of living organisms and their life processes.
Students should revise:
Cells and their functions Human body systems Nutrition Respiration Photosynthesis Reproduction Genetics Ecosystems and environmentReady to practise?
Browse past papers
Important Tip Practice drawing and labeling biological diagrams clearly.
Use correct scientific terminology when answering structured questions.
2. Chemistry Chemistry focuses on substances, their properties and the reactions that occur between them.
Elements and compounds Atomic structure Chemical bonding Acids and bases Chemical reactions Metals and non-metals Separation techniques Chemical equations
Important Tip Learn important chemical symbols, formulas and equations.
Try to understand the reason behind each chemical reaction instead of simply memorizing it.
3. Physics Physics covers topics related to matter, energy, forces and physical phenomena.
Important topics include:
Force and motion Work, energy and power Pressure Heat and temperature Light Sound Electricity Magnetism
Important Tip Write the correct formula before starting a calculation.
Always include the correct unit with your final answer.
4. Scientific Calculations Students should practice:
Using scientific formulas Substituting values correctly Converting units Rearranging simple formulas Writing calculation steps clearlyShowing your working clearly may help you gain marks even if the final answer is incorrect.
5. Practical Questions Practical knowledge is an important part of O/L Science.
Students should understand:
Laboratory equipment Experimental procedures Variables Observations Measurements Recording results Drawing conclusionsAlways read practical questions carefully before answering.
6. Diagrams Students should practice drawing neat and correctly labeled diagrams.
Important diagrams may relate to:
Human body systems Plant structures Electrical circuits Light Experimental apparatusA clear and accurate diagram can make your answer easier to understand.
7. Past Paper Practice Past paper practice is one of the best ways to prepare for the O/L Science examination.
Complete past papers regularly Practice under examination conditions Check your answers Identify weak topics Revise incorrect answers Repeat difficult questionsPast papers also help you understand common examination question patterns.
Common Mistakes to Avoid Not reading the complete question Forgetting units Using incorrect scientific terms Drawing unclear diagrams Not showing calculation steps Memorizing without understanding Spending too much time on one question
Exam Preparation Tips Create a weekly revision plan Revise one topic at a time Keep a notebook for formulas and definitions Practice diagrams regularly Complete past papers Review your mistakes Revise difficult lessons several times Practice completing questions within the available time
Final Advice Science becomes much easier when you understand the concepts instead of only memorizing facts.
Divide the syllabus into smaller sections and revise them regularly.
Combine textbook study, short notes, practical knowledge and past paper practice for better examination preparation.
Use PaperMaster.lk to access past papers, model papers, study guides and educational resources for your O/L examination preparation.
Good luck with your studies!