

SiL STEM Series Test
"Designed by graduates of the University of Oxford and aligning with the British National Curriculum"
Date & Time: The test will be held on 7 December 2025 9AM
Register closed 23 November 2025
What is SiL STEM Series?
The SiL STEM Series Test 2025 is an international assessment for students aged 15 and below. It covers three subjects – Mathematics, Science, and Computer/Digital Literacy.
Students may choose to take one subject, two subjects, or all three.
Aligned with the British National Curriculum and enriched with higher-order concepts, the test challenges students’ thinking and helps identify advanced learners.
All students receive a detailed report on strengths and areas for improvement. Participating schools also receive performance insights to see how their students are doing overall.
The SiL STEM Series Test - Thailand is scheduled to be held at 7th December 2025.
We are expecting to send the results back to each of our National Coordinators for subsequent announcement and distribution by 30th January 2026.
MATH
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Allowed timing for tests (Maths):
SiL Level 1-3 papers for 30 min.
SiL Level 4-6 papers for 45 min.
SiL Level 7-9 papers for 60 min. -
Format:
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30 Multiple-Choice Questions
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10 Short-Answer Questions
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SCIENCE
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SiL Level 1-3 papers for 30 min.
SiL Level 4-6 papers for 40 min.
SiL Level 7-9 papers for 50 min. -
Format:
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38/39 Multiple-Choice questions
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1 Matching Question
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1 Short-Answer Question for the Level 4 & above papers
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Computer/
Digital Literacy
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SiL Level 1-3 papers for 30 min.
SiL Level 4-6 papers for 40 min. -
Format:
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39 Multiple-Choice questions
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1 Matching Question
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Acknowledging effort & Celebrating achievement.
The allocation of awards is based on the following framework:
-Top Performance Award (+ Medal) for the Top 1% participants.
-Gold Award for the next 10%.
-Silver Award for the next 25%.
-Bronze Award for the next 50%.
-Certificate of Participation to all remaining participants.
*Please note that the percentile may be subject to slight adjustment with reference to the performance of each group of participants. The number of students who are attaining the same overall score is another deciding factor that affects the modulation.
SiL STEM 2025 Regulation
Exam Date: 7 December 2025 9AM
Registration : The last date to register is 23 November 2025.
ELIGIBILITY:
The SiL STEM Series Test 2025 is open to all students who are 15 years old and below.
• Maths: For students aged 15 and below
• Science: For students aged 15 and below
• Computer/Digital Literacy: For students aged 12 and below
DATE, Mode and Venue:
Option 1: Online at Home
• Date: 7 December 2025 (Sunday)
• Duration: Around 30-60 minutes for each test.
• Participants can take the test online from the comfort of their home.
• A laptop with a webcam, a stable internet connection, and a quiet room are required.
Option 2: At School (Online exam at the campus)
This option is only available if the participant's school is conducting the test.
• Date: 2, 3, 4, 5, 6 or 7 December 2025
• Duration: Around 30-60 minutes for each test.
• Participants can take the test at their school.
• Teachers at the school or center will handle the invigilation.
• The test date can be any time between 2–7 November 2025, with the decision to be made by teachers.
Subjects and Levels:
There are 3 STEM subjects: Maths, Science, and Computer/Digital Literacy.
Students may choose to participate in one, two, or all three subjects.
To ensure a fair and age-appropriate experience, students should enroll based on their year of birth (as of 2025).
• Maths & Science: Levels 1–9
• Computer/Digital Literacy: Levels 1–6
Level 1: 7 years old (born 2018)
Level 2: 8 years old (born 2017)
Level 3: 9 years old (born 2016)
Level 4: 10 years old (born 2015)
Level 5: 11 years old (born 2014)
Level 6: 12 years old (born 2013)
Level 7: 13 years old (born 2012)
Level 8: 14 years old (born 2011)
Level 9: 15 years old (born 2010)
👉 Students may also choose to enroll in a higher level if they wish.
Register Fees: 790 Baht / Subject
Individual Registration
If you’re a parent, teacher, or student looking to register individually, please click on register butoon
Group Registration
If you are a teacher and wish to register a group of students from your school or tuition center, please send your request by email to contact@phiconnections.org
Refund Policy
Refund is permissible if you cannot attend the competition on the scheduled date due to health condition, and the replacement date is not available. You must produce a valid medical certificate to request the refund of the participation fee.
Questions?
For more information about the competition, please email to contact@phiconnections.org
What will you receive?

RESULTS ANALYSIS
All participants will receive a detailed result slip. Their responses will be analyzed to identify key strengths and areas for improvement.

CERTIFICATE
All participants will receive a certificate of participation after the test.

MEDAL
Participants who rank in the top 1% of their batch will be awarded a medal.