2025/2026 Waec GCE Integrated Science Syllabus/Questions & Answers
The 2025/2026 WAEC GCE Integrated Science syllabus covers foundational scientific concepts across biology, chemistry, physics, and environmental science. Candidates should expect objective, theory, and practical questions designed to test their understanding and application of scientific principles.
This syllabus is tailored for private candidates writing the WAEC General Certificate Examination (GCE). It aims to develop scientific literacy and problem-solving skills relevant to everyday life and technological advancement.
Syllabus Objectives
By the end of the course, candidates should be able to:
- Apply scientific methods to solve basic problems
- Understand the interdependence of living and non-living things
- Use scientific knowledge to manage natural resources sustainably
- Operate common appliances and understand their principles
- Explore and optimize energy use
- Investigate phenomena using observation and experimentation
Core Content Areas
1. Diversity of Matter
- States of matter
- Elements, compounds, and mixtures
- Separation techniques
- Acids, bases, and salts
2. Cycles in Nature
- Water cycle
- Carbon and nitrogen cycles
- Photosynthesis and respiration
- Reproduction and life cycles
3. Energy
- Forms and sources of energy
- Heat, light, and sound energy
- Electricity and magnetism
- Energy transformation and conservation
4. Interactions of Matter
- Chemical reactions
- Force and motion
- Pressure and its applications
- Machines and their uses
5. Environmental Science
- Pollution and waste management
- Conservation of natural resources
- Climate change and adaptation
- Sustainable development
Scheme of Examination
- Paper 1: Objectives – 50 multiple-choice questions (1 hour, 50 marks)
- Paper 2: Theory – Six essay-type questions; answer four (1 hour 30 minutes, 80 marks)
- Paper 3: Practical – Four questions on experimental work (2 hours, 60 marks)
Sample Questions & Answers
Objective Example:
Which of the following is a method of separating a mixture of sand and salt?
- Filtration
- Distillation
- Chromatography
- Evaporation
Answer: A. Filtration
Theory Example:
Explain the process of photosynthesis and state two factors that affect its rate.
Answer:
Photosynthesis is the process by which green plants use sunlight to convert carbon dioxide and water into glucose and oxygen.
Factors affecting its rate include light intensity and carbon dioxide concentration.
Practical Example:
You are given a beaker, thermometer, and a heat source. Describe how to determine the boiling point of water.
Answer:
- Pour water into the beaker
- Insert the thermometer
- Heat the water gradually
- Record the temperature when bubbles form steadily and do not rise further
How to Prepare
- Study each topic using WAEC-approved textbooks
- Practice past questions and mock exams
- Conduct simple experiments to reinforce practical understanding
- Use diagrams and charts to visualize scientific processes