IP Combined Science Notes (Lower Sec, Year 1-2): 03) Elements, Compounds, Mixtures & Separation
Download printable cheat-sheet (CC-BY 4.0)08 Dec 2025, 00:00 Z
Reviewed by
Ezekiel Tan·Academic Advisor (Biology)
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Q: What does IP Combined Science Notes (Lower Sec, Year 1-2): 03) Elements, Compounds, Mixtures & Separation cover?
A: Differentiate elements, compounds, and mixtures, interpret particle diagrams, and choose appropriate separation techniques.
A clear view of particle composition lets you justify why certain apparatus combinations purify substances while others fail.
These notes align with MOE's Lower Secondary Science syllabus themes commonly taught in IP Sec 1–2, and act as a bridge into upper-secondary Physics, Chemistry, and Biology.
Status: MOE Lower Secondary Science syllabus (current release) checked 2025-11-30 - scope unchanged; remains the reference for these combined science notes.
Learning targets
- Classify matter using particle diagrams, chemical symbols, and formulae.
- Write simple word and chemical equations with state symbols.
- Select separation techniques suited to mixtures (solid-solid, solid-liquid, liquid-liquid).
- Explain purification steps with annotated apparatus diagrams.
1. Matter classification
| Type | Definition | Example | Particle view |
| Element | Substance made of one type of atom. |
