SPSO Practical Round: What to Expect & How to Prepare
Q: How do I prepare for the SPSO practical round (Round 2)?
A: The SPSO practical round tests hands-on science skills - observation, measurement, data recording, and inference - using apparatus and materials from the primary/lower-secondary science syllabus. Students who cleared the Round 1 written paper are invited. Preparation centres on practising basic lab techniques, recording observations clearly, and understanding simple instruments.
TL;DR
Round 2 is a practical session for top performers from the SPSO Round 1 written paper.
Past participants have reported activities involving pH testing, measuring physical properties, simple chemical reactions, and biological observations.
The best preparation is systematic practice with basic lab apparatus and clear, organised data recording.
Details change year to year - always check the latest official SPSO pages before preparing.
Link this guide back to the main SPSO overview for Round 1 written-paper advice and award structure.
Status: NUS High SPSO official pages checked 2026-03-23 - two-round structure (written → practical for top scorers) unchanged. Specific activities, apparatus, and logistics can differ each year; verify the current circular before preparing.
1 What is the SPSO practical round?
The Singapore Primary Science Olympiad (SPSO) is organised by NUS High School of Mathematics and Science. Only students who score well enough on the Round 1 written paper (a 40-question MCQ exam) are invited to Round 2 - the practical session.
Round 2 is not a separate competition you sign up for. If your child qualifies based on their Round 1 performance, the school will receive an invitation with logistics (date, venue, what to bring). The threshold for invitation is set each year by the organisers and is not published in advance.
Because Round 2 is reserved for students who have already demonstrated strong theoretical knowledge, the practical session assumes comfort with primary-level and some lower-secondary-level science concepts.
2 What skills are tested?
Based on accounts from past participants and the general aims of science olympiad practical rounds, Round 2 typically assesses:
| Skill area | What it means in practice |
| Observation |



