Secondary 3 · Science · Chemical sciences
Atoms and isotopes
Students describe the structure of atoms in terms of protons, neutrons and electrons, define isotopes and learn about radioactive decay and its uses in medicine and dating.
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These lessons were written around Australian Curriculum strands and matched to Singapore levels by age (Primary 1 is the first year of primary school). They are not aligned to MOE syllabuses or the PSLE, so check them against the syllabus your child is working towards.
This topic is currently an outline — a full lesson with worked examples and practice questions is on our list. In the meantime you can build a lesson plan template for it, or find related worksheets.
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