International Equilibrium Science Olympiad (IESO)
International Equilibrium Science Olympiad (IESO) strives to be a prestigious global platform celebrating excellence in science while
nurturing futurE thinkers, problem solvers, and leaders. It fosters collaboration, innovation, ethical conduct, accessibility, diversity, and lifelong learning.Â
Guided by the SOLO taxonomy, IESO ensures a progression from surface- level understanding to deep, extended abstract thinking. By aligning with Higher-Order Thinking Skills (HOTS), the Olympiad challenges participants to analyze, evaluate, and create solutions, fostering critical thinking and innovation.
The ISO is committed to developing globally competent, ethical, and innovative thinkers equipped to tackle the scientific challenges of the 21st century.
THE IESO AIMS TO:
cultivate scientific excellence by engaging students in meaningful, real-world challenges
encouraging students to address real-life problems with creativity and adaptability
empowers learners to develop a comprehensive grasp of scientific concepts and their application
The International Equilibrium Science Olympiad (IESO) fosters a dynamic platform to challenge young minds across critical scientific domains. With a focus on Life Science, Physical Science, and Applied Science, the IESO aims to inspire innovative thinking, critical problem-solving, and global competency.
For details, please refer to images below:
What to prepare for online competition?
What to prepare for online exam?
Exams are monitored through a camera system integrated into the exam platform. Students must use a device with an active, functioning camera and mic with stable internet connectivity throughout the exam. Meanwhile, the exam portal will also record the candidate screen activities for exam security during the exam. So you have to make sure your device, browser, internet connection, camera and screen sharing meet the technical requirements and are properly set up for a smooth and uninterrupted exam experience.
Exam Rules
Results:
Click the following to view your result.
For candidate to check Result:
Key in your IC number & Password to login.
Example: 120101010101 (do not key -)
IESO Final Round 2026
Students who are eligible to compete for the International/Final Rounds are those who garnered Gold, Silver and Bronze Medals in the IESO 2026 Heat Round. Participation in the International Round is voluntary in nature. Registration fee and details will be announced together with Heat Round result.
IESO 2026 Final Round Important Info
Category: Â Choose according to Heat Round 2026
Language Of Paper: English, Chinese & Malay (within the same question)
Time allowed to answer questions: 90 minutes (The time spent to answer questions will not affect your score)
Total Number Of Questions: 30 multiple-choice questions. Each question carries 4 marks.
** Marks are awarded for correct answers only.
** 1 mark will be deducted for every incorrect answer.
** No marks will be awarded or deducted for unattempted questions.
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AWARDS
MEDALS AND PAPER CERTIFICATES
Students who won Gold/Silver/Bronze will received medal and paper certificate.
Merit/Participation will received paper certificate.
** Candidates who are absent or did not join the exam because of any reason will not receive any certificate.
There are 3 options available.
Student can join PhIMO Final Round 2026 either
- (Group tour) Face to face at Clark, Pampanga Philippine from 4th September 2026 to 7th September 2026.
- (Free & Easy) Face to face at Clark, Pampanga Philippine where Exam on 5th September 2026 & Awarding on 6th September 2026.
or
3. Online competition at home on 5th September 2026. Actual time to be confirmed.
Details will send to candidates who are qualifies. Please refer to registration form when registration is open.
Group Tour Itinerary
4th September 2026 Day 1: Arrival & Registration
Airport: CLARK International Airport, Philippines.
** ONLY Candidates who join Group Tour will join PARADE OF NATIONS & WELCOME DINNER.
5th September 2026 Day 2: Exam Day
** ONLY Candidates who join Group Tour will join AMAZING MATH & SCIENCE RACE or ORAL COMPETITION & DINNER.
6th September 2026 Day 3: Awarding Ceremony
** ONLY Candidates who join Group Tour will join DINOSAUR & INSECT LAND, LUNCH & VICTORY DINNER.Â
Attire for attending the award ceremony is Traditional clothing.
You may prepare small souvenier for gift exchange session.
7th September 2026 Day 4: Go Home
Fee comparison.
What are included in group tour, free & easy and Online Exam?
** (Flight ticket & insurance have to make own purchase)
IESO 2026 Final Round Review
There are online training sessions provided by IESO International Team.
Discussions are in English.
Discussions are for both Face to Face and Online students.
We will share timetable to candidates who registered for international round only.
Please take note:
- There is no replacement exam under any circumstances of absentee.
- No fee will be refund.
- No reschedule of exam.
- Please join the exam on the date and time allowed only.
- The organizing committee reserved the final decision-making rights on all disputes.
- Group tour do not include flight ticket and insurance.
Registration close on
Early bird is on 30-6-2026, 11pm
Normal Price is on 10-7-2026, 11pm.
This form is currently closed for submissions.
IESO 2026 Heat Round Important Info
System will open from 10am – 9pm on competition days. Candidate must submit answers before 9pm.
Fee is RM90 per candidate
Category: Grade 1 to Grade 12 (Primary 1 to A-Levels/STPM)
**Â Candidate will join as below:
Paper A is for Primary 1 & 2
Paper B is for Primary 3 & 4
Paper C is for Primary 5 & 6
Paper D is for Secondary 1/Form 1/Year 7
Paper E is for Secondary 2/Form 2/Year 8
Paper F is for Secondary 3/Form 3/Year 9, Junior Secondary/Form 4/Year 10 & Senior Secondary/Form 5/Year 11.
Language Of Paper: English, Chinese & Malay (within the same question)
Total Number Of Questions:Â 25 Multiple Choice questions
Time allowed to answer questions:Â 60 minutes
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AWARDS
Students who won Gold/Silver/Bronze are qualified to enter IESO Final round. Further details, please refer to IESO Final Round tab.
Top-performing students in the heat or national rounds receive the following awards based on their performance:
• Gold Medal + Certificate of Recognition: Awarded to students who achieve 80% or more correct answers.
• Silver Medal + Certificate of Recognition: Awarded to students who achieve 60% or more correct answers.
• Bronze Medal + Certificate of Recognition: Awarded to students who achieve 40% or more correct answers.
• Merit Certificate: Awarded to students who achieve 20% or more correct answers.
• Certificate of Participation: For those who achieve below 20% correct answers.
Sample questions are available for reference.
Please take note:
- There is no replacement exam under any circumstances of absentee.
- No fee will be refund.
- No reschedule of exam.
- Please join the exam on the date and time allowed only.
- The organizing committee reserved the final decision-making rights on all disputes.
Registration close on 10th-May-2026, 11pm.
IESO Science 2026 Heat Round registration is closed.