Free Secondary Science Practice Exams

O Level Biology, Chemistry & Physics Mock Exam Papers

Practice with our collection of free mock exam papers for Biology, Chemistry, Physics and Combined Sciences. Each sample test paper includes answer keys to support effective revision and help you prepare confidently for your O Level science exams.

Combined Biology Mock Paper
Pure Chemistry Mock Paper
Biology 50 Commonly Tested Questions
Chemistry 50 Commonly Tested Questions
S3 Combined Physics WA1 Paper
Select Subject Notes
Combined Biology Mock Paper
Pure Chemistry Mock Paper
Biology 50 Commonly Tested Questions
Chemistry 50 Commonly Tested Questions
S3 Combined Physics WA1 Paper
Two students stand in front of a whiteboard with biology diagrams. Text overlay reads: "Extensive 'O' Levels Comb. Biology WA1 Full Mock Paper.

O Level Biology Mock Exam

Combined Biology - WA1 Full Mock Paper

Looking to kickstart your Working Assessment 1 revision? Start with our FREE full Mock Paper for Combined Biology. Suitable for both Sec 3 and Sec 4 students.

Challenge yourself with the Mock paper without referring to the answers. Use the answer keys after to serve as the basis to determine which topics and concepts you need to revise further. 

Paper 1 + 2
Answer Keys
A hand writes chemical equations and formulas on a green chalkboard, with text overlay reading "Comprehensive 'O' Levels Pure Chemistry WA1 Full Mock Paper.

O Level Chemistry Mock Exam

Pure Chemistry - WA1 Full Mock Paper

Looking to kickstart your Working Assessment 1 revision? Start with our FREE full Mock Paper for Pure Chemistry. Suitable for both Sec 3 and Sec 4 students.

Challenge yourself with the Mock paper without referring to the answers. Use the answer keys after to serve as the basis to determine which topics and concepts you need to revise further. 

Paper 1 + 2
Answer Keys
Two hands holding a pencil and writing in a notebook, with a text overlay promoting "O Levels Biology Top 50 Commonly Tested Questions.

O Level Biology Mock Exam

50 Commonly Tested Questions

Did you know that certain questions in the exams tend to repeat themselves? 

After analysing 10 years of past year papers, we have compiled the top 50 most commonly tested questions for the ‘O’ levels exams to help you get a head start in preparing for your exams! 

Don’t worry, we’ve included answers as well.

A notebook with handwritten chemistry equations, a black pen, and two laboratory flasks containing yellow and orange liquids. Text overlay reads “‘O’ Levels Chemistry: Top 50 Commonly Tested Questions.”.

O Level Chemistry Mock Exam

50 Commonly Tested Questions

Certain Biology concepts and question types are consistently tested in O-Level examinations.

Through an analysis of 10 years of past-year Biology papers, we have compiled 50 commonly tested Biology questions to support focused and efficient exam preparation.

Answer keys are included to help you check your understanding.

A hand pulls back one ball of a Newton’s cradle on a wooden surface. Text overlay reads: “Extensive S3 Combined Physics WA1.”.

Combined physics Mock Exam

S3 Combined Physics WA1 Paper

This WA1 practice paper is designed to help you strengthen your understanding of key Sec 3 Combined Physics topics, including measurements, motion, forces, density, and pressure. It includes a mix of MCQs and structured questions, with answers provided to help you check your understanding and prepare confidently for school assessments.

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