The Central Board of Secondary Education has opened registrations for its Science Challenge 2026-27, giving students of Classes VIII, IX and X at affiliated schools a national stage to show off their scientific thinking. The competition, announced this week, runs in two rounds and is completely free to enter. Schools can register their students for the first round between October 14 and October 30, 2026.
Now in its seventh edition, the CBSE Science Challenge has quietly become one of the largest school-level science competitions in the country. Unlike paid olympiads run by private organisers, it costs nothing and runs entirely through the school, which has made it popular with parents who are tired of expensive extracurricular sign-ups. The board says the aim is simple: spark scientific curiosity and reward critical thinking, inquiry and problem-solving rather than rote learning.
How the two-round format works
Round 1 is the school-level challenge. Each registered school conducts it in its own classrooms between November 2 and November 13, 2026, using a question paper supplied directly by CBSE. The activity is timed, sixty minutes at the maximum, and mixes different prompts with multiple-choice questions. Teachers evaluate the responses using a scoring key provided by the board.
Here is the interesting bit: selection is not based on marks alone. The board has told schools to weigh accuracy and speed together. Students who answer the maximum number of questions correctly get priority, but if two candidates score the same, the one who finished faster goes ahead. Invigilators have been asked to record start times, make sure everyone begins together, and note down early finishers.
From each school, the six best performers move to Round 2, and there is a quota: exactly two students from each of Classes VIII, IX and X. Round 2 is the inter-school, computer-based challenge, scheduled tentatively between November 30 and December 4, 2026. Schools register their six nominees for this round from November 17 to November 25 through the board’s designated portal.
Key dates at a glance
- Round 1 registration: October 14 to October 30, 2026
- Round 1 school-level challenge: November 2 to November 13, 2026
- Round 2 registration: November 17 to November 25, 2026
- Round 2 computer-based challenge: November 30 to December 4, 2026 (tentative)
- Round 2 portal: cbseacadit.nic.in/sc/
What students and schools should keep in mind
Schools cannot simply nominate students directly for the second round; every participant must go through Round 1. The board has also asked schools to arrange proper invigilation so the first round stays fair, since the question paper and the scoring key come from CBSE itself. For the national-level visibility, note that the number of schools conducting the module will be visible nationally, so participation also reflects on the school.
Certificates are part of the deal. Every student who reaches Round 2 receives an online participation certificate from CBSE, and the best performers get appreciation certificates. For Class IX and X students, who are already deep into board-prep mode, this is a low-cost way to build a science profile before the pre-boards hit in December.
Why this challenge matters this year
The timing is worth noting. Round 1 lands right when schools are wrapping up first-term assessments, and Round 2 sits just ahead of the winter break. It gives students a competitive outlet between the exam-heavy months without eating into revision time. Educators have also welcomed the speed-plus-accuracy format, which mirrors how entrance exams like JEE and NEET actually reward quick, precise thinking.
Parents should talk to their child’s school before October 30, since registrations go through the school, not individual students. The board has asked all affiliated schools to encourage eligible students to take part, and schools can seek clarification from CBSE at cbsesciencechallenge@cbseshiksha.in or on 011-43354916. Updates and detailed instructions are available on the CBSE academic website.
FAQs
Who can participate in the CBSE Science Challenge 2026-27?
Students of Classes VIII, IX and X studying in CBSE-affiliated schools. Registrations are done by the school, not by individual students.
Is there any fee for the Science Challenge?
No. Participation in both rounds is completely free.
What is the last date to register for Round 1?
October 30, 2026. Schools must complete student registration by then.
How are students selected for Round 2?
Each school selects six students: the two best from each of Classes VIII, IX and X, based on accuracy and speed in the Round 1 assessment.
Do participants get certificates?
Yes. All Round 2 participants receive online participation certificates from CBSE, and top performers receive appreciation certificates.
Science does not live only in textbooks, and a national challenge that tests how fast and how well students can think is a step in the right direction. If your school is on the CBSE grid, this is one worth entering.
