Integrated Science is unusual among WASSCE subjects because it isn't organised the way a single science is. Instead of a biology chapter followed by a chemistry chapter, the syllabus groups ideas by theme, cycles, systems, energy, matter, so a single question can quietly draw on physics and biology at the same time. That's part of why students who feel confident in the sciences individually can still be caught out by how Integrated Science asks its questions.
Topics to check against your syllabus
| Topic area | Examples to practise |
|---|---|
| Systems (human, plant, ecosystems) | Human body systems, plant structure, how ecosystems function |
| Energy & its Transformations | Forms of energy, energy conversion, simple circuits and forces |
| Interactions of Matter | Acids, bases and salts, chemical reactions, basic forces |
| Diversity of Matter (living & non-living) | Classification of living things, states and properties of matter |
| Cycles | Water cycle, carbon cycle, nitrogen cycle, life cycles |
| Science & Industry / Agriculture | Applications of science to farming and local industry |
Misconceptions that show up again and again
- Believing plants only photosynthesise and don't respire. Plants respire continuously, day and night, and photosynthesise only when there's light. A surprising number of students get this backwards under exam conditions.
- Confusing mass with weight. Especially in questions that ask about force or gravity, where the two get used interchangeably even though they aren't the same thing.
- Thinking electric current gets 'used up' as it flows around a circuit. Current is the same throughout a simple series circuit; it's energy that gets transferred, not the current itself that disappears.
- Treating the nitrogen or carbon cycle as a list to memorise rather than a process to explain. Questions often ask students to explain a step in a cycle, not just name the stages in order, which trips up students who only memorised the diagram.
Don't let 'integrated' mean 'shallow'
Because the subject spans three sciences, it's tempting to skim each theme lightly instead of actually understanding any of them. WAEC's questions reward understanding a process well enough to explain it, not just recognising a term.
How questions in this subject tend to be asked
Expect a mix of straightforward recall, questions that ask you to identify something from a labelled diagram, questions that ask you to explain a process in your own words, and questions that give you experimental data and ask you to interpret it. The explain-a-process questions are usually where marks are lost, since a correct but incomplete explanation earns partial credit at best.
For how WAEC generally splits objective and theory questions across its papers, see How WASSCE Questions Are Structured.
Where to focus if your time is limited
Use your school syllabus to check theme coverage. Choose a concept you cannot explain or apply yet, practise it, then review a different theme in the next session.
Practise an Integrated Science theme
Choose a theme from your class notes and create a short quiz. Check generated questions against the topics your school is teaching.
Practice Integrated Science freeFrequently asked
Is Integrated Science the same as Biology, Chemistry, and Physics combined?
Not exactly. Integrated Science is a core subject that draws on ideas from biology, chemistry, and physics but organises them around broader themes like systems, cycles, and energy, rather than teaching each science as a separate subject the way the elective sciences do.
Do I still need Integrated Science if I'm taking Biology, Chemistry, and Physics as electives?
Yes. Integrated Science is a core subject required of every SHS candidate regardless of programme, separate from any elective sciences taken alongside it.