OSN SD
OSN Coaching Science SD
Observing nature and asking why.
Science Primary coaching builds conceptual understanding first, then trains reasoning through graded problems, from school level to the OSN selection.
Who it's for
Primary students who want to take part in the OSN Science field, whether beginners or returning participants.
Stages & test format
OSN-S (School)
2 January – 28 February 2026Selection at each school; schools register up to 5 students per field.
OSN-K (District/City)
8 June 202640 multiple-choice questions
Duration: 60 minutes
OSN-P (Province)
6 July 202620 short-answer questions
Duration: 60 minutes
National Semifinal
13 August 2026 (online)10 multiple choice + 8 short answer + 2 essays
Duration: 90 minutes
National Final
25–31 August 2026 (in person)Theory 1: 40 multiple choice · Theory 2: 12 essays · Experiment: 2 themes
Duration: 60 + 90 + 120 minutes
What you'll study
- Makhluk hidup
- Benda dan sifatnya
- Energi
- Bumi dan alam semesta
Assessment
Weekly practice with explanations
Short quizzes per topic
Official-style selection simulations
Source: 2026 OSN Guidelines for Primary (Pusat Prestasi Nasional). Dates may change, always check official Puspresnas announcements.
FAQ OSN Science SD
01What does OSN Science SD cover?
Makhluk hidup, Benda dan sifatnya, Energi, Bumi dan alam semesta
02What are the OSN Science SD stages and formats?
OSN-S (School) (2 January – 28 February 2026): Selection at each school; schools register up to 5 students per field.. OSN-K (District/City) (8 June 2026): 40 multiple-choice questions, 60 minutes. OSN-P (Province) (6 July 2026): 20 short-answer questions, 60 minutes. National Semifinal (13 August 2026 (online)): 10 multiple choice + 8 short answer + 2 essays, 90 minutes. National Final (25–31 August 2026 (in person)): Theory 1: 40 multiple choice · Theory 2: 12 essays · Experiment: 2 themes, 60 + 90 + 120 minutes.
03Who is OSN Science SD training for?
Primary students who want to take part in the OSN Science field, whether beginners or returning participants.
04Is there online OSN Science SD training?
Yes. OSN Science SD training at Presisi Academy runs online with live classes, graded practice, and selection simulations. In-person classes are coming soon.